1 |
jmc |
1.46 |
C $Header: /u/gcmpack/MITgcm/pkg/mom_common/mom_calc_visc.F,v 1.45 2013/07/28 21:04:25 jmc Exp $ |
2 |
jmc |
1.14 |
C $Name: $ |
3 |
baylor |
1.1 |
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4 |
|
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#include "MOM_COMMON_OPTIONS.h" |
5 |
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6 |
jmc |
1.45 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
7 |
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CBOP |
8 |
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C !ROUTINE: MOM_CALC_VISC |
9 |
baylor |
1.5 |
|
10 |
jmc |
1.45 |
C !INTERFACE: |
11 |
baylor |
1.1 |
SUBROUTINE MOM_CALC_VISC( |
12 |
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I bi,bj,k, |
13 |
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O viscAh_Z,viscAh_D,viscA4_Z,viscA4_D, |
14 |
jmc |
1.12 |
I hDiv,vort3,tension,strain,KE,hFacZ, |
15 |
baylor |
1.1 |
I myThid) |
16 |
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jmc |
1.45 |
C !DESCRIPTION: |
18 |
baylor |
1.5 |
C Calculate horizontal viscosities (L is typical grid width) |
19 |
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C harmonic viscosity= |
20 |
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C viscAh (or viscAhD on div pts and viscAhZ on zeta pts) |
21 |
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C +0.25*L**2*viscAhGrid/deltaT |
22 |
baylor |
1.17 |
C +sqrt((viscC2leith/pi)**6*grad(Vort3)**2 |
23 |
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C +(viscC2leithD/pi)**6*grad(hDiv)**2)*L**3 |
24 |
baylor |
1.5 |
C +(viscC2smag/pi)**2*L**2*sqrt(Tension**2+Strain**2) |
25 |
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C |
26 |
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C biharmonic viscosity= |
27 |
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C viscA4 (or viscA4D on div pts and viscA4Z on zeta pts) |
28 |
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C +0.25*0.125*L**4*viscA4Grid/deltaT (approx) |
29 |
baylor |
1.17 |
C +0.125*L**5*sqrt((viscC4leith/pi)**6*grad(Vort3)**2 |
30 |
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C +(viscC4leithD/pi)**6*grad(hDiv)**2) |
31 |
baylor |
1.5 |
C +0.125*L**4*(viscC4smag/pi)**2*sqrt(Tension**2+Strain**2) |
32 |
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C |
33 |
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C Note that often 0.125*L**2 is the scale between harmonic and |
34 |
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C biharmonic (see Griffies and Hallberg (2000)) |
35 |
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C This allows the same value of the coefficient to be used |
36 |
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C for roughly similar results with biharmonic and harmonic |
37 |
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C |
38 |
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C LIMITERS -- limit min and max values of viscosities |
39 |
jmc |
1.32 |
C viscAhReMax is min value for grid point harmonic Reynolds num |
40 |
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C harmonic viscosity>sqrt(2*KE)*L/viscAhReMax |
41 |
baylor |
1.5 |
C |
42 |
jmc |
1.32 |
C viscA4ReMax is min value for grid point biharmonic Reynolds num |
43 |
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C biharmonic viscosity>sqrt(2*KE)*L**3/8/viscA4ReMax |
44 |
baylor |
1.5 |
C |
45 |
|
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C viscAhgridmax is CFL stability limiter for harmonic viscosity |
46 |
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C harmonic viscosity<0.25*viscAhgridmax*L**2/deltaT |
47 |
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C |
48 |
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C viscA4gridmax is CFL stability limiter for biharmonic viscosity |
49 |
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C biharmonic viscosity<viscA4gridmax*L**4/32/deltaT (approx) |
50 |
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C |
51 |
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C viscAhgridmin and viscA4gridmin are lower limits for viscosity: |
52 |
cnh |
1.25 |
C harmonic viscosity>0.25*viscAhgridmin*L**2/deltaT |
53 |
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C biharmonic viscosity>viscA4gridmin*L**4/32/deltaT (approx) |
54 |
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55 |
baylor |
1.5 |
C RECOMMENDED VALUES |
56 |
baylor |
1.18 |
C viscC2Leith=1-3 |
57 |
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C viscC2LeithD=1-3 |
58 |
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C viscC4Leith=1-3 |
59 |
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C viscC4LeithD=1.5-3 |
60 |
jmc |
1.32 |
C viscC2smag=2.2-4 (Griffies and Hallberg,2000) |
61 |
baylor |
1.5 |
C 0.2-0.9 (Smagorinsky,1993) |
62 |
jmc |
1.32 |
C viscC4smag=2.2-4 (Griffies and Hallberg,2000) |
63 |
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C viscAhReMax>=1, (<2 suppresses a computational mode) |
64 |
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C viscA4ReMax>=1, (<2 suppresses a computational mode) |
65 |
baylor |
1.5 |
C viscAhgridmax=1 |
66 |
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C viscA4gridmax=1 |
67 |
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C viscAhgrid<1 |
68 |
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C viscA4grid<1 |
69 |
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C viscAhgridmin<<1 |
70 |
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C viscA4gridmin<<1 |
71 |
baylor |
1.1 |
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jmc |
1.45 |
C !USES: |
73 |
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IMPLICIT NONE |
74 |
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baylor |
1.1 |
C == Global variables == |
76 |
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#include "SIZE.h" |
77 |
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#include "GRID.h" |
78 |
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#include "EEPARAMS.h" |
79 |
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#include "PARAMS.h" |
80 |
jmc |
1.45 |
#include "MOM_VISC.h" |
81 |
heimbach |
1.33 |
#ifdef ALLOW_AUTODIFF_TAMC |
82 |
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#include "tamc.h" |
83 |
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#include "tamc_keys.h" |
84 |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
85 |
baylor |
1.1 |
|
86 |
jmc |
1.45 |
C !INPUT/OUTPUT PARAMETERS: |
87 |
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C myThid :: my thread Id number |
88 |
baylor |
1.1 |
INTEGER bi,bj,k |
89 |
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_RL viscAh_Z(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
90 |
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_RL viscAh_D(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
91 |
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_RL viscA4_Z(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
92 |
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_RL viscA4_D(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
93 |
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_RL hDiv(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
94 |
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_RL vort3(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
95 |
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_RL tension(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
96 |
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_RL strain(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
97 |
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_RL KE(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
98 |
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_RS hFacZ(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
99 |
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INTEGER myThid |
100 |
jmc |
1.45 |
CEOP |
101 |
baylor |
1.1 |
|
102 |
jmc |
1.45 |
C !LOCAL VARIABLES: |
103 |
jmc |
1.44 |
INTEGER i,j |
104 |
jmc |
1.29 |
#ifdef ALLOW_NONHYDROSTATIC |
105 |
jmc |
1.45 |
_RL shiftAh, shiftA4 |
106 |
jmc |
1.29 |
#endif |
107 |
jmc |
1.42 |
#ifdef ALLOW_AUTODIFF_TAMC |
108 |
heimbach |
1.34 |
INTEGER lockey_1, lockey_2 |
109 |
jmc |
1.42 |
#endif |
110 |
baylor |
1.5 |
_RL smag2fac, smag4fac |
111 |
baylor |
1.17 |
_RL leith2fac, leith4fac |
112 |
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_RL leithD2fac, leithD4fac |
113 |
baylor |
1.6 |
_RL viscAhRe_max, viscA4Re_max |
114 |
jmc |
1.15 |
_RL Alin,grdVrt,grdDiv, keZpt |
115 |
jmc |
1.45 |
_RL L2, L3, L5, L2rdt, L4rdt, recip_dt |
116 |
baylor |
1.5 |
_RL Uscl,U4scl |
117 |
jmc |
1.16 |
_RL divDx(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
118 |
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_RL divDy(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
119 |
jmc |
1.20 |
_RL vrtDx(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
120 |
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_RL vrtDy(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
121 |
baylor |
1.5 |
_RL viscAh_ZMax(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
122 |
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_RL viscAh_DMax(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
123 |
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_RL viscA4_ZMax(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
124 |
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_RL viscA4_DMax(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
125 |
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_RL viscAh_ZMin(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
126 |
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_RL viscAh_DMin(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
127 |
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_RL viscA4_ZMin(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
128 |
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_RL viscA4_DMin(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
129 |
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_RL viscAh_ZLth(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
130 |
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_RL viscAh_DLth(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
131 |
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_RL viscA4_ZLth(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
132 |
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_RL viscA4_DLth(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
133 |
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_RL viscAh_ZLthD(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
134 |
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_RL viscAh_DLthD(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
135 |
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_RL viscA4_ZLthD(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
136 |
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_RL viscA4_DLthD(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
137 |
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_RL viscAh_ZSmg(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
138 |
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_RL viscAh_DSmg(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
139 |
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_RL viscA4_ZSmg(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
140 |
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_RL viscA4_DSmg(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
141 |
jmc |
1.32 |
LOGICAL calcLeith, calcSmag |
142 |
baylor |
1.1 |
|
143 |
heimbach |
1.33 |
#ifdef ALLOW_AUTODIFF_TAMC |
144 |
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act1 = bi - myBxLo(myThid) |
145 |
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max1 = myBxHi(myThid) - myBxLo(myThid) + 1 |
146 |
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act2 = bj - myByLo(myThid) |
147 |
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max2 = myByHi(myThid) - myByLo(myThid) + 1 |
148 |
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act3 = myThid - 1 |
149 |
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max3 = nTx*nTy |
150 |
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act4 = ikey_dynamics - 1 |
151 |
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ikey = (act1 + 1) + act2*max1 |
152 |
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& + act3*max1*max2 |
153 |
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& + act4*max1*max2*max3 |
154 |
heimbach |
1.34 |
lockey_1 = (ikey-1)*Nr + k |
155 |
heimbach |
1.33 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
156 |
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157 |
jmc |
1.32 |
C-- Set flags which are used in this S/R and elsewhere : |
158 |
jmc |
1.45 |
C useVariableVisc, useHarmonicVisc and useBiharmonicVisc |
159 |
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C are now set early on (in S/R SET_PARAMS) |
160 |
baylor |
1.1 |
|
161 |
jmc |
1.46 |
c IF ( useVariableVisc ) THEN |
162 |
jmc |
1.45 |
C---- variable viscosity : |
163 |
baylor |
1.1 |
|
164 |
jmc |
1.45 |
recip_dt = 1. _d 0 |
165 |
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IF ( deltaTmom.NE.0. ) recip_dt = 1. _d 0/deltaTmom |
166 |
jmc |
1.32 |
|
167 |
jmc |
1.45 |
IF ( useHarmonicVisc .AND. viscAhReMax.NE.0. ) THEN |
168 |
jmc |
1.32 |
viscAhRe_max=SQRT(2. _d 0)/viscAhReMax |
169 |
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ELSE |
170 |
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viscAhRe_max=0. _d 0 |
171 |
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ENDIF |
172 |
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173 |
jmc |
1.45 |
IF ( useBiharmonicVisc .AND. viscA4ReMax.NE.0. ) THEN |
174 |
jmc |
1.32 |
viscA4Re_max=0.125 _d 0*SQRT(2. _d 0)/viscA4ReMax |
175 |
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ELSE |
176 |
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viscA4Re_max=0. _d 0 |
177 |
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ENDIF |
178 |
baylor |
1.5 |
|
179 |
jmc |
1.32 |
calcLeith= |
180 |
baylor |
1.5 |
& (viscC2leith.NE.0.) |
181 |
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& .OR.(viscC2leithD.NE.0.) |
182 |
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& .OR.(viscC4leith.NE.0.) |
183 |
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& .OR.(viscC4leithD.NE.0.) |
184 |
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185 |
jmc |
1.32 |
calcSmag= |
186 |
baylor |
1.5 |
& (viscC2smag.NE.0.) |
187 |
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& .OR.(viscC4smag.NE.0.) |
188 |
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189 |
jmc |
1.32 |
IF (calcSmag) THEN |
190 |
baylor |
1.5 |
smag2fac=(viscC2smag/pi)**2 |
191 |
jmc |
1.10 |
smag4fac=0.125 _d 0*(viscC4smag/pi)**2 |
192 |
jmc |
1.32 |
ELSE |
193 |
jmc |
1.10 |
smag2fac=0. _d 0 |
194 |
|
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smag4fac=0. _d 0 |
195 |
jmc |
1.32 |
ENDIF |
196 |
baylor |
1.1 |
|
197 |
jmc |
1.32 |
IF (calcLeith) THEN |
198 |
baylor |
1.17 |
IF (useFullLeith) THEN |
199 |
baylor |
1.19 |
leith2fac =(viscC2leith /pi)**6 |
200 |
baylor |
1.17 |
leithD2fac=(viscC2leithD/pi)**6 |
201 |
baylor |
1.19 |
leith4fac =0.015625 _d 0*(viscC4leith /pi)**6 |
202 |
baylor |
1.17 |
leithD4fac=0.015625 _d 0*(viscC4leithD/pi)**6 |
203 |
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ELSE |
204 |
baylor |
1.19 |
leith2fac =(viscC2leith /pi)**3 |
205 |
baylor |
1.17 |
leithD2fac=(viscC2leithD/pi)**3 |
206 |
baylor |
1.19 |
leith4fac =0.125 _d 0*(viscC4leith /pi)**3 |
207 |
|
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leithD4fac=0.125 _d 0*(viscC4leithD/pi)**3 |
208 |
baylor |
1.17 |
ENDIF |
209 |
jmc |
1.32 |
ELSE |
210 |
baylor |
1.17 |
leith2fac=0. _d 0 |
211 |
|
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leith4fac=0. _d 0 |
212 |
|
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leithD2fac=0. _d 0 |
213 |
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leithD4fac=0. _d 0 |
214 |
jmc |
1.32 |
ENDIF |
215 |
baylor |
1.17 |
|
216 |
jmc |
1.45 |
DO j=1-OLy,sNy+OLy |
217 |
|
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DO i=1-OLx,sNx+OLx |
218 |
jmc |
1.46 |
C- viscosity arrays have been initialised everywhere before calling this S/R |
219 |
|
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c viscAh_D(i,j) = viscAhD |
220 |
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c viscAh_Z(i,j) = viscAhZ |
221 |
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c viscA4_D(i,j) = viscA4D |
222 |
|
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c viscA4_Z(i,j) = viscA4Z |
223 |
jmc |
1.45 |
|
224 |
heimbach |
1.21 |
visca4_zsmg(i,j) = 0. _d 0 |
225 |
|
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viscah_zsmg(i,j) = 0. _d 0 |
226 |
jmc |
1.45 |
|
227 |
heimbach |
1.21 |
viscAh_Dlth(i,j) = 0. _d 0 |
228 |
|
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viscA4_Dlth(i,j) = 0. _d 0 |
229 |
|
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viscAh_DlthD(i,j)= 0. _d 0 |
230 |
|
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viscA4_DlthD(i,j)= 0. _d 0 |
231 |
jmc |
1.45 |
|
232 |
heimbach |
1.21 |
viscAh_DSmg(i,j) = 0. _d 0 |
233 |
|
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viscA4_DSmg(i,j) = 0. _d 0 |
234 |
jmc |
1.45 |
|
235 |
heimbach |
1.21 |
viscAh_ZLth(i,j) = 0. _d 0 |
236 |
|
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viscA4_ZLth(i,j) = 0. _d 0 |
237 |
|
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viscAh_ZLthD(i,j)= 0. _d 0 |
238 |
|
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viscA4_ZLthD(i,j)= 0. _d 0 |
239 |
|
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ENDDO |
240 |
jmc |
1.32 |
ENDDO |
241 |
jmc |
1.16 |
|
242 |
jmc |
1.46 |
C- Initialise to zero gradient of vorticity & divergence: |
243 |
jmc |
1.45 |
DO j=1-OLy,sNy+OLy |
244 |
|
|
DO i=1-OLx,sNx+OLx |
245 |
jmc |
1.16 |
divDx(i,j) = 0. |
246 |
|
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divDy(i,j) = 0. |
247 |
jmc |
1.20 |
vrtDx(i,j) = 0. |
248 |
|
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vrtDy(i,j) = 0. |
249 |
jmc |
1.16 |
ENDDO |
250 |
|
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ENDDO |
251 |
jmc |
1.20 |
|
252 |
jmc |
1.46 |
IF ( calcLeith ) THEN |
253 |
|
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C-- horizontal gradient of horizontal divergence: |
254 |
jmc |
1.16 |
C- gradient in x direction: |
255 |
|
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IF (useCubedSphereExchange) THEN |
256 |
|
|
C to compute d/dx(hDiv), fill corners with appropriate values: |
257 |
jmc |
1.36 |
CALL FILL_CS_CORNER_TR_RL( 1, .FALSE., |
258 |
jmc |
1.27 |
& hDiv, bi,bj, myThid ) |
259 |
jmc |
1.16 |
ENDIF |
260 |
jmc |
1.45 |
DO j=2-OLy,sNy+OLy-1 |
261 |
|
|
DO i=2-OLx,sNx+OLx-1 |
262 |
jmc |
1.44 |
divDx(i,j) = (hDiv(i,j)-hDiv(i-1,j))*recip_dxC(i,j,bi,bj) |
263 |
jmc |
1.16 |
ENDDO |
264 |
|
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ENDDO |
265 |
|
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|
266 |
|
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C- gradient in y direction: |
267 |
|
|
IF (useCubedSphereExchange) THEN |
268 |
|
|
C to compute d/dy(hDiv), fill corners with appropriate values: |
269 |
jmc |
1.36 |
CALL FILL_CS_CORNER_TR_RL( 2, .FALSE., |
270 |
jmc |
1.27 |
& hDiv, bi,bj, myThid ) |
271 |
jmc |
1.16 |
ENDIF |
272 |
jmc |
1.45 |
DO j=2-OLy,sNy+OLy-1 |
273 |
|
|
DO i=2-OLx,sNx+OLx-1 |
274 |
jmc |
1.44 |
divDy(i,j) = (hDiv(i,j)-hDiv(i,j-1))*recip_dyC(i,j,bi,bj) |
275 |
jmc |
1.16 |
ENDDO |
276 |
|
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ENDDO |
277 |
jmc |
1.20 |
|
278 |
jmc |
1.46 |
C-- horizontal gradient of vertical vorticity: |
279 |
jmc |
1.20 |
C- gradient in x direction: |
280 |
jmc |
1.45 |
DO j=2-OLy,sNy+OLy |
281 |
|
|
DO i=2-OLx,sNx+OLx-1 |
282 |
jmc |
1.20 |
vrtDx(i,j) = (vort3(i+1,j)-vort3(i,j)) |
283 |
jmc |
1.44 |
& *recip_dxG(i,j,bi,bj) |
284 |
jmc |
1.20 |
& *maskS(i,j,k,bi,bj) |
285 |
jmc |
1.44 |
#ifdef ALLOW_OBCS |
286 |
|
|
& *maskInS(i,j,bi,bj) |
287 |
|
|
#endif |
288 |
jmc |
1.20 |
ENDDO |
289 |
|
|
ENDDO |
290 |
|
|
C- gradient in y direction: |
291 |
jmc |
1.45 |
DO j=2-OLy,sNy+OLy-1 |
292 |
|
|
DO i=2-OLx,sNx+OLx |
293 |
jmc |
1.20 |
vrtDy(i,j) = (vort3(i,j+1)-vort3(i,j)) |
294 |
jmc |
1.44 |
& *recip_dyG(i,j,bi,bj) |
295 |
jmc |
1.20 |
& *maskW(i,j,k,bi,bj) |
296 |
jmc |
1.44 |
#ifdef ALLOW_OBCS |
297 |
|
|
& *maskInW(i,j,bi,bj) |
298 |
|
|
#endif |
299 |
jmc |
1.20 |
ENDDO |
300 |
|
|
ENDDO |
301 |
|
|
|
302 |
jmc |
1.46 |
C-- end if calcLeith |
303 |
jmc |
1.16 |
ENDIF |
304 |
|
|
|
305 |
jmc |
1.45 |
DO j=2-OLy,sNy+OLy-1 |
306 |
|
|
DO i=2-OLx,sNx+OLx-1 |
307 |
baylor |
1.1 |
CCCCCCCCCCCCCCC Divergence Point CalculationsCCCCCCCCCCCCCCCCCCCC |
308 |
baylor |
1.5 |
|
309 |
heimbach |
1.34 |
#ifdef ALLOW_AUTODIFF_TAMC |
310 |
|
|
# ifndef AUTODIFF_DISABLE_LEITH |
311 |
dfer |
1.38 |
lockey_2 = i+olx + (sNx+2*olx)*(j+oly-1) |
312 |
heimbach |
1.37 |
& + (sNx+2*olx)*(sNy+2*oly)*(lockey_1-1) |
313 |
jmc |
1.44 |
CADJ STORE viscA4_ZSmg(i,j) |
314 |
heimbach |
1.34 |
CADJ & = comlev1_mom_ijk_loop , key=lockey_2, byte=isbyte |
315 |
jmc |
1.44 |
CADJ STORE viscAh_ZSmg(i,j) |
316 |
heimbach |
1.34 |
CADJ & = comlev1_mom_ijk_loop , key=lockey_2, byte=isbyte |
317 |
|
|
# endif |
318 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
319 |
|
|
|
320 |
jmc |
1.32 |
C These are (powers of) length scales |
321 |
dfer |
1.40 |
L2 = L2_D(i,j,bi,bj) |
322 |
|
|
L2rdt = 0.25 _d 0*recip_dt*L2 |
323 |
|
|
L3 = L3_D(i,j,bi,bj) |
324 |
|
|
L4rdt = L4rdt_D(i,j,bi,bj) |
325 |
|
|
L5 = (L2*L3) |
326 |
baylor |
1.5 |
|
327 |
mlosch |
1.41 |
#ifndef AUTODIFF_DISABLE_REYNOLDS_SCALE |
328 |
baylor |
1.5 |
C Velocity Reynolds Scale |
329 |
jmc |
1.15 |
IF ( viscAhRe_max.GT.0. .AND. KE(i,j).GT.0. ) THEN |
330 |
jmc |
1.32 |
Uscl=SQRT(KE(i,j)*L2)*viscAhRe_max |
331 |
jmc |
1.15 |
ELSE |
332 |
|
|
Uscl=0. |
333 |
|
|
ENDIF |
334 |
|
|
IF ( viscA4Re_max.GT.0. .AND. KE(i,j).GT.0. ) THEN |
335 |
jmc |
1.32 |
U4scl=SQRT(KE(i,j))*L3*viscA4Re_max |
336 |
jmc |
1.15 |
ELSE |
337 |
|
|
U4scl=0. |
338 |
|
|
ENDIF |
339 |
mlosch |
1.41 |
#endif /* ndef AUTODIFF_DISABLE_REYNOLDS_SCALE */ |
340 |
baylor |
1.5 |
|
341 |
heimbach |
1.33 |
#ifndef AUTODIFF_DISABLE_LEITH |
342 |
jmc |
1.32 |
IF (useFullLeith.AND.calcLeith) THEN |
343 |
baylor |
1.1 |
C This is the vector magnitude of the vorticity gradient squared |
344 |
jmc |
1.20 |
grdVrt=0.25 _d 0*( (vrtDx(i,j+1)*vrtDx(i,j+1) |
345 |
|
|
& + vrtDx(i,j)*vrtDx(i,j) ) |
346 |
|
|
& + (vrtDy(i+1,j)*vrtDy(i+1,j) |
347 |
|
|
& + vrtDy(i,j)*vrtDy(i,j) ) ) |
348 |
baylor |
1.1 |
|
349 |
|
|
C This is the vector magnitude of grad (div.v) squared |
350 |
|
|
C Using it in Leith serves to damp instabilities in w. |
351 |
jmc |
1.16 |
grdDiv=0.25 _d 0*( (divDx(i+1,j)*divDx(i+1,j) |
352 |
|
|
& + divDx(i,j)*divDx(i,j) ) |
353 |
|
|
& + (divDy(i,j+1)*divDy(i,j+1) |
354 |
|
|
& + divDy(i,j)*divDy(i,j) ) ) |
355 |
baylor |
1.5 |
|
356 |
|
|
viscAh_DLth(i,j)= |
357 |
jmc |
1.32 |
& SQRT(leith2fac*grdVrt+leithD2fac*grdDiv)*L3 |
358 |
baylor |
1.17 |
viscA4_DLth(i,j)= |
359 |
jmc |
1.32 |
& SQRT(leith4fac*grdVrt+leithD4fac*grdDiv)*L5 |
360 |
baylor |
1.5 |
viscAh_DLthd(i,j)= |
361 |
jmc |
1.32 |
& SQRT(leithD2fac*grdDiv)*L3 |
362 |
baylor |
1.17 |
viscA4_DLthd(i,j)= |
363 |
jmc |
1.32 |
& SQRT(leithD4fac*grdDiv)*L5 |
364 |
|
|
ELSEIF (calcLeith) THEN |
365 |
jmc |
1.45 |
C but this approximation will work on cube (and differs by as much as 4X) |
366 |
jmc |
1.32 |
grdVrt=MAX( ABS(vrtDx(i,j+1)), ABS(vrtDx(i,j)) ) |
367 |
|
|
grdVrt=MAX( grdVrt, ABS(vrtDy(i+1,j)) ) |
368 |
|
|
grdVrt=MAX( grdVrt, ABS(vrtDy(i,j)) ) |
369 |
baylor |
1.5 |
|
370 |
jmc |
1.45 |
C This approximation is good to the same order as above... |
371 |
jmc |
1.32 |
grdDiv=MAX( ABS(divDx(i+1,j)), ABS(divDx(i,j)) ) |
372 |
|
|
grdDiv=MAX( grdDiv, ABS(divDy(i,j+1)) ) |
373 |
|
|
grdDiv=MAX( grdDiv, ABS(divDy(i,j)) ) |
374 |
baylor |
1.1 |
|
375 |
baylor |
1.17 |
viscAh_Dlth(i,j)=(leith2fac*grdVrt+(leithD2fac*grdDiv))*L3 |
376 |
|
|
viscA4_Dlth(i,j)=(leith4fac*grdVrt+(leithD4fac*grdDiv))*L5 |
377 |
|
|
viscAh_DlthD(i,j)=((leithD2fac*grdDiv))*L3 |
378 |
|
|
viscA4_DlthD(i,j)=((leithD4fac*grdDiv))*L5 |
379 |
baylor |
1.1 |
ELSE |
380 |
jmc |
1.10 |
viscAh_Dlth(i,j)=0. _d 0 |
381 |
|
|
viscA4_Dlth(i,j)=0. _d 0 |
382 |
|
|
viscAh_DlthD(i,j)=0. _d 0 |
383 |
|
|
viscA4_DlthD(i,j)=0. _d 0 |
384 |
baylor |
1.1 |
ENDIF |
385 |
|
|
|
386 |
jmc |
1.32 |
IF (calcSmag) THEN |
387 |
baylor |
1.5 |
viscAh_DSmg(i,j)=L2 |
388 |
jmc |
1.32 |
& *SQRT(tension(i,j)**2 |
389 |
jmc |
1.10 |
& +0.25 _d 0*(strain(i+1, j )**2+strain( i ,j+1)**2 |
390 |
|
|
& +strain(i , j )**2+strain(i+1,j+1)**2)) |
391 |
baylor |
1.5 |
viscA4_DSmg(i,j)=smag4fac*L2*viscAh_DSmg(i,j) |
392 |
|
|
viscAh_DSmg(i,j)=smag2fac*viscAh_DSmg(i,j) |
393 |
baylor |
1.1 |
ELSE |
394 |
jmc |
1.10 |
viscAh_DSmg(i,j)=0. _d 0 |
395 |
|
|
viscA4_DSmg(i,j)=0. _d 0 |
396 |
baylor |
1.1 |
ENDIF |
397 |
heimbach |
1.33 |
#endif /* AUTODIFF_DISABLE_LEITH */ |
398 |
baylor |
1.1 |
|
399 |
|
|
C Harmonic on Div.u points |
400 |
baylor |
1.5 |
Alin=viscAhD+viscAhGrid*L2rdt |
401 |
|
|
& +viscAh_DLth(i,j)+viscAh_DSmg(i,j) |
402 |
gforget |
1.43 |
#ifdef ALLOW_3D_VISCAH |
403 |
|
|
& +viscAhDfld(i,j,k,bi,bj) |
404 |
|
|
#endif |
405 |
jmc |
1.32 |
viscAh_DMin(i,j)=MAX(viscAhGridMin*L2rdt,Uscl) |
406 |
|
|
viscAh_D(i,j)=MAX(viscAh_DMin(i,j),Alin) |
407 |
|
|
viscAh_DMax(i,j)=MIN(viscAhGridMax*L2rdt,viscAhMax) |
408 |
|
|
viscAh_D(i,j)=MIN(viscAh_DMax(i,j),viscAh_D(i,j)) |
409 |
baylor |
1.1 |
|
410 |
|
|
C BiHarmonic on Div.u points |
411 |
baylor |
1.5 |
Alin=viscA4D+viscA4Grid*L4rdt |
412 |
|
|
& +viscA4_DLth(i,j)+viscA4_DSmg(i,j) |
413 |
gforget |
1.43 |
#ifdef ALLOW_3D_VISCA4 |
414 |
|
|
& +viscA4Dfld(i,j,k,bi,bj) |
415 |
jmc |
1.44 |
#endif |
416 |
jmc |
1.32 |
viscA4_DMin(i,j)=MAX(viscA4GridMin*L4rdt,U4scl) |
417 |
|
|
viscA4_D(i,j)=MAX(viscA4_DMin(i,j),Alin) |
418 |
|
|
viscA4_DMax(i,j)=MIN(viscA4GridMax*L4rdt,viscA4Max) |
419 |
|
|
viscA4_D(i,j)=MIN(viscA4_DMax(i,j),viscA4_D(i,j)) |
420 |
baylor |
1.1 |
|
421 |
|
|
CCCCCCCCCCCCC Vorticity Point CalculationsCCCCCCCCCCCCCCCCCC |
422 |
jmc |
1.32 |
C These are (powers of) length scales |
423 |
dfer |
1.40 |
L2 = L2_Z(i,j,bi,bj) |
424 |
|
|
L2rdt = 0.25 _d 0*recip_dt*L2 |
425 |
|
|
L3 = L3_Z(i,j,bi,bj) |
426 |
|
|
L4rdt = L4rdt_Z(i,j,bi,bj) |
427 |
|
|
L5 = (L2*L3) |
428 |
baylor |
1.5 |
|
429 |
mlosch |
1.41 |
#ifndef AUTODIFF_DISABLE_REYNOLDS_SCALE |
430 |
jmc |
1.15 |
C Velocity Reynolds Scale (Pb here at CS-grid corners !) |
431 |
|
|
IF ( viscAhRe_max.GT.0. .OR. viscA4Re_max.GT.0. ) THEN |
432 |
|
|
keZpt=0.25 _d 0*( (KE(i,j)+KE(i-1,j-1)) |
433 |
|
|
& +(KE(i-1,j)+KE(i,j-1)) ) |
434 |
|
|
IF ( keZpt.GT.0. ) THEN |
435 |
jmc |
1.32 |
Uscl = SQRT(keZpt*L2)*viscAhRe_max |
436 |
|
|
U4scl= SQRT(keZpt)*L3*viscA4Re_max |
437 |
jmc |
1.15 |
ELSE |
438 |
|
|
Uscl =0. |
439 |
|
|
U4scl=0. |
440 |
|
|
ENDIF |
441 |
|
|
ELSE |
442 |
|
|
Uscl =0. |
443 |
|
|
U4scl=0. |
444 |
|
|
ENDIF |
445 |
mlosch |
1.41 |
#endif /* ndef AUTODIFF_DISABLE_REYNOLDS_SCALE */ |
446 |
baylor |
1.1 |
|
447 |
heimbach |
1.33 |
#ifndef AUTODIFF_DISABLE_LEITH |
448 |
baylor |
1.1 |
C This is the vector magnitude of the vorticity gradient squared |
449 |
jmc |
1.32 |
IF (useFullLeith.AND.calcLeith) THEN |
450 |
jmc |
1.20 |
grdVrt=0.25 _d 0*( (vrtDx(i-1,j)*vrtDx(i-1,j) |
451 |
|
|
& + vrtDx(i,j)*vrtDx(i,j) ) |
452 |
|
|
& + (vrtDy(i,j-1)*vrtDy(i,j-1) |
453 |
|
|
& + vrtDy(i,j)*vrtDy(i,j) ) ) |
454 |
baylor |
1.1 |
|
455 |
|
|
C This is the vector magnitude of grad(div.v) squared |
456 |
jmc |
1.16 |
grdDiv=0.25 _d 0*( (divDx(i,j-1)*divDx(i,j-1) |
457 |
|
|
& + divDx(i,j)*divDx(i,j) ) |
458 |
|
|
& + (divDy(i-1,j)*divDy(i-1,j) |
459 |
|
|
& + divDy(i,j)*divDy(i,j) ) ) |
460 |
baylor |
1.5 |
|
461 |
|
|
viscAh_ZLth(i,j)= |
462 |
jmc |
1.32 |
& SQRT(leith2fac*grdVrt+leithD2fac*grdDiv)*L3 |
463 |
baylor |
1.17 |
viscA4_ZLth(i,j)= |
464 |
jmc |
1.32 |
& SQRT(leith4fac*grdVrt+leithD4fac*grdDiv)*L5 |
465 |
baylor |
1.5 |
viscAh_ZLthD(i,j)= |
466 |
jmc |
1.32 |
& SQRT(leithD2fac*grdDiv)*L3 |
467 |
baylor |
1.17 |
viscA4_ZLthD(i,j)= |
468 |
jmc |
1.32 |
& SQRT(leithD4fac*grdDiv)*L5 |
469 |
baylor |
1.5 |
|
470 |
jmc |
1.32 |
ELSEIF (calcLeith) THEN |
471 |
baylor |
1.1 |
C but this approximation will work on cube (and differs by 4X) |
472 |
jmc |
1.32 |
grdVrt=MAX( ABS(vrtDx(i-1,j)), ABS(vrtDx(i,j)) ) |
473 |
|
|
grdVrt=MAX( grdVrt, ABS(vrtDy(i,j-1)) ) |
474 |
|
|
grdVrt=MAX( grdVrt, ABS(vrtDy(i,j)) ) |
475 |
|
|
|
476 |
|
|
grdDiv=MAX( ABS(divDx(i,j)), ABS(divDx(i,j-1)) ) |
477 |
|
|
grdDiv=MAX( grdDiv, ABS(divDy(i,j)) ) |
478 |
|
|
grdDiv=MAX( grdDiv, ABS(divDy(i-1,j)) ) |
479 |
baylor |
1.5 |
|
480 |
baylor |
1.17 |
viscAh_ZLth(i,j)=(leith2fac*grdVrt+(leithD2fac*grdDiv))*L3 |
481 |
|
|
viscA4_ZLth(i,j)=(leith4fac*grdVrt+(leithD4fac*grdDiv))*L5 |
482 |
|
|
viscAh_ZLthD(i,j)=(leithD2fac*grdDiv)*L3 |
483 |
|
|
viscA4_ZLthD(i,j)=(leithD4fac*grdDiv)*L5 |
484 |
baylor |
1.1 |
ELSE |
485 |
jmc |
1.10 |
viscAh_ZLth(i,j)=0. _d 0 |
486 |
|
|
viscA4_ZLth(i,j)=0. _d 0 |
487 |
|
|
viscAh_ZLthD(i,j)=0. _d 0 |
488 |
|
|
viscA4_ZLthD(i,j)=0. _d 0 |
489 |
baylor |
1.1 |
ENDIF |
490 |
|
|
|
491 |
jmc |
1.32 |
IF (calcSmag) THEN |
492 |
baylor |
1.5 |
viscAh_ZSmg(i,j)=L2 |
493 |
jmc |
1.32 |
& *SQRT(strain(i,j)**2 |
494 |
jmc |
1.10 |
& +0.25 _d 0*(tension( i , j )**2+tension( i ,j-1)**2 |
495 |
|
|
& +tension(i-1, j )**2+tension(i-1,j-1)**2)) |
496 |
baylor |
1.5 |
viscA4_ZSmg(i,j)=smag4fac*L2*viscAh_ZSmg(i,j) |
497 |
|
|
viscAh_ZSmg(i,j)=smag2fac*viscAh_ZSmg(i,j) |
498 |
baylor |
1.1 |
ENDIF |
499 |
heimbach |
1.33 |
#endif /* AUTODIFF_DISABLE_LEITH */ |
500 |
baylor |
1.1 |
|
501 |
|
|
C Harmonic on Zeta points |
502 |
baylor |
1.5 |
Alin=viscAhZ+viscAhGrid*L2rdt |
503 |
|
|
& +viscAh_ZLth(i,j)+viscAh_ZSmg(i,j) |
504 |
jmc |
1.44 |
#ifdef ALLOW_3D_VISCAH |
505 |
gforget |
1.43 |
& +viscAhZfld(i,j,k,bi,bj) |
506 |
jmc |
1.44 |
#endif |
507 |
jmc |
1.32 |
viscAh_ZMin(i,j)=MAX(viscAhGridMin*L2rdt,Uscl) |
508 |
|
|
viscAh_Z(i,j)=MAX(viscAh_ZMin(i,j),Alin) |
509 |
|
|
viscAh_ZMax(i,j)=MIN(viscAhGridMax*L2rdt,viscAhMax) |
510 |
|
|
viscAh_Z(i,j)=MIN(viscAh_ZMax(i,j),viscAh_Z(i,j)) |
511 |
baylor |
1.5 |
|
512 |
|
|
C BiHarmonic on Zeta points |
513 |
|
|
Alin=viscA4Z+viscA4Grid*L4rdt |
514 |
|
|
& +viscA4_ZLth(i,j)+viscA4_ZSmg(i,j) |
515 |
gforget |
1.43 |
#ifdef ALLOW_3D_VISCA4 |
516 |
|
|
& +viscA4Zfld(i,j,k,bi,bj) |
517 |
jmc |
1.44 |
#endif |
518 |
jmc |
1.32 |
viscA4_ZMin(i,j)=MAX(viscA4GridMin*L4rdt,U4scl) |
519 |
|
|
viscA4_Z(i,j)=MAX(viscA4_ZMin(i,j),Alin) |
520 |
|
|
viscA4_ZMax(i,j)=MIN(viscA4GridMax*L4rdt,viscA4Max) |
521 |
|
|
viscA4_Z(i,j)=MIN(viscA4_ZMax(i,j),viscA4_Z(i,j)) |
522 |
baylor |
1.1 |
ENDDO |
523 |
|
|
ENDDO |
524 |
jmc |
1.32 |
|
525 |
jmc |
1.45 |
#ifdef ALLOW_NONHYDROSTATIC |
526 |
|
|
IF ( nonHydrostatic ) THEN |
527 |
jmc |
1.46 |
C-- Pass Viscosities to calc_gw (if constant, not necessary) |
528 |
jmc |
1.45 |
|
529 |
|
|
IF ( k.LT.Nr ) THEN |
530 |
|
|
C Prepare for next level (next call) |
531 |
|
|
DO j=1-OLy,sNy+OLy |
532 |
|
|
DO i=1-OLx,sNx+OLx |
533 |
|
|
viscAh_W(i,j,k+1,bi,bj) = halfRL*viscAh_D(i,j) |
534 |
|
|
viscA4_W(i,j,k+1,bi,bj) = halfRL*viscA4_D(i,j) |
535 |
|
|
ENDDO |
536 |
|
|
ENDDO |
537 |
|
|
ENDIF |
538 |
|
|
|
539 |
|
|
shiftAh = viscAhW - viscAhD |
540 |
|
|
shiftA4 = viscA4W - viscA4D |
541 |
|
|
IF ( k.EQ.1 ) THEN |
542 |
|
|
C These values dont get used |
543 |
|
|
DO j=1-OLy,sNy+OLy |
544 |
|
|
DO i=1-OLx,sNx+OLx |
545 |
|
|
viscAh_W(i,j,k,bi,bj) = shiftAh + viscAh_D(i,j) |
546 |
|
|
viscA4_W(i,j,k,bi,bj) = shiftA4 + viscA4_D(i,j) |
547 |
|
|
ENDDO |
548 |
|
|
ENDDO |
549 |
|
|
ELSE |
550 |
|
|
C Note that previous call of this function has already added half. |
551 |
|
|
DO j=1-OLy,sNy+OLy |
552 |
|
|
DO i=1-OLx,sNx+OLx |
553 |
|
|
viscAh_W(i,j,k,bi,bj) = shiftAh + viscAh_W(i,j,k,bi,bj) |
554 |
|
|
& + halfRL*viscAh_D(i,j) |
555 |
|
|
viscA4_W(i,j,k,bi,bj) = shiftA4 + viscA4_W(i,j,k,bi,bj) |
556 |
|
|
& + halfRL*viscA4_D(i,j) |
557 |
|
|
ENDDO |
558 |
|
|
ENDDO |
559 |
|
|
ENDIF |
560 |
|
|
|
561 |
|
|
ENDIF |
562 |
|
|
#endif /* ALLOW_NONHYDROSTATIC */ |
563 |
|
|
|
564 |
jmc |
1.46 |
c ELSE |
565 |
jmc |
1.45 |
C---- use constant viscosity (useVariableVisc=F): |
566 |
jmc |
1.46 |
c DO j=1-OLy,sNy+OLy |
567 |
|
|
c DO i=1-OLx,sNx+OLx |
568 |
|
|
c viscAh_D(i,j) = viscAhD |
569 |
|
|
c viscAh_Z(i,j) = viscAhZ |
570 |
|
|
c viscA4_D(i,j) = viscA4D |
571 |
|
|
c viscA4_Z(i,j) = viscA4Z |
572 |
|
|
c ENDDO |
573 |
|
|
c ENDDO |
574 |
jmc |
1.32 |
C---- variable/constant viscosity : end if/else block |
575 |
jmc |
1.46 |
c ENDIF |
576 |
baylor |
1.1 |
|
577 |
|
|
#ifdef ALLOW_DIAGNOSTICS |
578 |
|
|
IF (useDiagnostics) THEN |
579 |
|
|
CALL DIAGNOSTICS_FILL(viscAh_D,'VISCAHD ',k,1,2,bi,bj,myThid) |
580 |
|
|
CALL DIAGNOSTICS_FILL(viscA4_D,'VISCA4D ',k,1,2,bi,bj,myThid) |
581 |
|
|
CALL DIAGNOSTICS_FILL(viscAh_Z,'VISCAHZ ',k,1,2,bi,bj,myThid) |
582 |
|
|
CALL DIAGNOSTICS_FILL(viscA4_Z,'VISCA4Z ',k,1,2,bi,bj,myThid) |
583 |
baylor |
1.5 |
|
584 |
|
|
CALL DIAGNOSTICS_FILL(viscAh_DMax,'VAHDMAX ',k,1,2,bi,bj,myThid) |
585 |
|
|
CALL DIAGNOSTICS_FILL(viscA4_DMax,'VA4DMAX ',k,1,2,bi,bj,myThid) |
586 |
|
|
CALL DIAGNOSTICS_FILL(viscAh_ZMax,'VAHZMAX ',k,1,2,bi,bj,myThid) |
587 |
|
|
CALL DIAGNOSTICS_FILL(viscA4_ZMax,'VA4ZMAX ',k,1,2,bi,bj,myThid) |
588 |
|
|
|
589 |
|
|
CALL DIAGNOSTICS_FILL(viscAh_DMin,'VAHDMIN ',k,1,2,bi,bj,myThid) |
590 |
|
|
CALL DIAGNOSTICS_FILL(viscA4_DMin,'VA4DMIN ',k,1,2,bi,bj,myThid) |
591 |
|
|
CALL DIAGNOSTICS_FILL(viscAh_ZMin,'VAHZMIN ',k,1,2,bi,bj,myThid) |
592 |
|
|
CALL DIAGNOSTICS_FILL(viscA4_ZMin,'VA4ZMIN ',k,1,2,bi,bj,myThid) |
593 |
|
|
|
594 |
|
|
CALL DIAGNOSTICS_FILL(viscAh_DLth,'VAHDLTH ',k,1,2,bi,bj,myThid) |
595 |
|
|
CALL DIAGNOSTICS_FILL(viscA4_DLth,'VA4DLTH ',k,1,2,bi,bj,myThid) |
596 |
|
|
CALL DIAGNOSTICS_FILL(viscAh_ZLth,'VAHZLTH ',k,1,2,bi,bj,myThid) |
597 |
|
|
CALL DIAGNOSTICS_FILL(viscA4_ZLth,'VA4ZLTH ',k,1,2,bi,bj,myThid) |
598 |
|
|
|
599 |
jmc |
1.46 |
CALL DIAGNOSTICS_FILL(viscAh_DLthD,'VAHDLTHD', |
600 |
|
|
& k,1,2,bi,bj,myThid) |
601 |
|
|
CALL DIAGNOSTICS_FILL(viscA4_DLthD,'VA4DLTHD', |
602 |
|
|
& k,1,2,bi,bj,myThid) |
603 |
|
|
CALL DIAGNOSTICS_FILL(viscAh_ZLthD,'VAHZLTHD', |
604 |
|
|
& k,1,2,bi,bj,myThid) |
605 |
|
|
CALL DIAGNOSTICS_FILL(viscA4_ZLthD,'VA4ZLTHD', |
606 |
|
|
& k,1,2,bi,bj,myThid) |
607 |
baylor |
1.5 |
|
608 |
|
|
CALL DIAGNOSTICS_FILL(viscAh_DSmg,'VAHDSMAG',k,1,2,bi,bj,myThid) |
609 |
|
|
CALL DIAGNOSTICS_FILL(viscA4_DSmg,'VA4DSMAG',k,1,2,bi,bj,myThid) |
610 |
|
|
CALL DIAGNOSTICS_FILL(viscAh_ZSmg,'VAHZSMAG',k,1,2,bi,bj,myThid) |
611 |
|
|
CALL DIAGNOSTICS_FILL(viscA4_ZSmg,'VA4ZSMAG',k,1,2,bi,bj,myThid) |
612 |
baylor |
1.1 |
ENDIF |
613 |
|
|
#endif |
614 |
|
|
|
615 |
|
|
RETURN |
616 |
|
|
END |