/[MITgcm]/MITgcm/pkg/shap_filt/shap_filt_uv_s2c.F
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Revision 1.1 - (hide annotations) (download)
Mon Mar 4 01:25:02 2002 UTC (22 years, 2 months ago) by jmc
Branch: MAIN
CVS Tags: checkpoint46n_post, checkpoint51k_post, checkpoint47e_post, checkpoint52l_pre, hrcube4, hrcube5, checkpoint46l_post, checkpoint46g_pre, checkpoint47c_post, checkpoint50c_post, checkpoint57b_post, checkpoint46f_post, checkpoint52d_pre, checkpoint48e_post, checkpoint56b_post, checkpoint50c_pre, checkpoint44f_post, checkpoint46b_post, checkpoint52j_pre, checkpoint51o_pre, checkpoint54d_post, checkpoint54e_post, checkpoint51l_post, checkpoint48i_post, checkpoint46l_pre, checkpoint57d_post, checkpoint50d_pre, checkpoint52k_post, checkpoint55, checkpoint54, checkpoint57, checkpoint56, checkpoint51, checkpoint50, checkpoint53, checkpoint52, checkpoint50d_post, checkpoint52f_post, checkpoint50b_pre, checkpoint54f_post, checkpoint51f_post, checkpoint48b_post, checkpoint51d_post, checkpoint48c_pre, checkpoint47d_pre, checkpoint51t_post, checkpoint51n_post, checkpoint55i_post, checkpoint52i_pre, hrcube_1, hrcube_2, hrcube_3, checkpoint51s_post, checkpoint47a_post, checkpoint55c_post, checkpoint48d_pre, checkpoint51j_post, checkpoint47i_post, checkpoint52e_pre, checkpoint52e_post, checkpoint51n_pre, checkpoint47d_post, checkpoint53d_post, checkpoint46d_pre, checkpoint57a_post, checkpoint48d_post, checkpoint48f_post, checkpoint45d_post, checkpoint52b_pre, checkpoint54b_post, checkpoint46j_pre, checkpoint51l_pre, checkpoint52m_post, checkpoint55g_post, checkpoint44h_pre, checkpoint48h_post, checkpoint51q_post, checkpoint51b_pre, checkpoint46a_post, checkpoint47g_post, checkpoint52b_post, checkpoint52c_post, checkpoint46j_post, checkpoint51h_pre, checkpoint46k_post, checkpoint48a_post, checkpoint45a_post, checkpoint57c_post, checkpoint50f_post, checkpoint50a_post, checkpoint50f_pre, checkpoint52f_pre, checkpoint55d_post, checkpoint47j_post, checkpoint54a_pre, checkpoint53c_post, checkpoint55d_pre, checkpoint57c_pre, checkpoint55j_post, branch-exfmods-tag, checkpoint44g_post, branchpoint-genmake2, checkpoint54a_post, checkpoint46e_pre, checkpoint55h_post, checkpoint51r_post, checkpoint48c_post, checkpoint45b_post, checkpoint46b_pre, checkpoint51i_post, checkpoint55b_post, checkpoint51b_post, checkpoint51c_post, checkpoint46c_pre, checkpoint53a_post, checkpoint46, checkpoint47b_post, checkpoint55f_post, checkpoint46h_pre, checkpoint52d_post, checkpoint53g_post, checkpoint46m_post, checkpoint46a_pre, checkpoint50g_post, checkpoint45c_post, checkpoint44h_post, checkpoint46g_post, checkpoint52a_pre, checkpoint50h_post, checkpoint52i_post, checkpoint50e_pre, checkpoint50i_post, checkpoint51i_pre, checkpoint52h_pre, checkpoint56a_post, checkpoint53f_post, checkpoint52j_post, checkpoint47f_post, checkpoint50e_post, checkpoint46i_post, checkpoint46c_post, branch-netcdf, checkpoint52l_post, checkpoint52n_post, checkpoint53b_pre, checkpoint46e_post, checkpoint56c_post, checkpoint51e_post, checkpoint57a_pre, checkpoint55a_post, checkpoint47, checkpoint45, checkpoint48, checkpoint49, checkpoint46h_post, checkpoint51o_post, checkpoint51f_pre, checkpoint48g_post, checkpoint53b_post, checkpoint47h_post, checkpoint52a_post, checkpoint44f_pre, checkpoint51g_post, ecco_c52_e35, checkpoint46d_post, checkpoint50b_post, checkpoint51m_post, checkpoint53d_pre, checkpoint55e_post, checkpoint54c_post, checkpoint51a_post, checkpoint51p_post, checkpoint51u_post
Branch point for: branch-exfmods-curt, branch-genmake2, branch-nonh, tg2-branch, ecco-branch, netcdf-sm0, checkpoint51n_branch 
Computational mode (no grid space) Shapiro filter for momentum,
that includes No-Slip BC option ; use "S2" operator.
1 jmc 1.1 C $Header: $
2     C $Name: $
3    
4     #include "SHAP_FILT_OPTIONS.h"
5    
6     CBOP
7     C !ROUTINE: SHAP_FILT_UV_S2C
8     C !INTERFACE:
9     SUBROUTINE SHAP_FILT_UV_S2C(
10     U uFld, vFld, tmpFldU, tmpFldV,
11     I kSize, myTime, myThid )
12     C !DESCRIPTION: \bv
13     C *==========================================================*
14     C | S/R SHAP_FILT_UV_S2C
15     C | o Applies Shapiro filter to velocity field (u & v).
16     C | o use filtering function "S2" = [1 - (d_xx+d_yy)^n]
17     C | with no grid spacing (computational Filter) ;
18     C | include No-Slip option
19     C *==========================================================*
20     C \ev
21    
22     C !USES:
23     IMPLICIT NONE
24    
25     C == Global variables ===
26     #include "SIZE.h"
27     #include "EEPARAMS.h"
28     #include "PARAMS.h"
29     #include "GRID.h"
30     #include "SHAP_FILT.h"
31    
32     C !INPUT/OUTPUT PARAMETERS:
33     C == Routine arguments
34     C uFld :: velocity field (U component) on which filter applies
35     C vFld :: velocity field (V component) on which filter applies
36     C tmpFldU :: working temporary array
37     C tmpFldV :: working temporary array
38     C kSize :: length of 3rd Dim : either =1 (2D field) or =Nr (3D field)
39     C myTime :: Current time in simulation
40     C myThid :: Thread number for this instance of SHAP_FILT_UV_S2C
41     INTEGER kSize
42     _RL uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,kSize,nSx,nSy)
43     _RL vFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,kSize,nSx,nSy)
44     _RL tmpFldU(1-OLx:sNx+OLx,1-OLy:sNy+OLy,kSize,nSx,nSy)
45     _RL tmpFldV(1-OLx:sNx+OLx,1-OLy:sNy+OLy,kSize,nSx,nSy)
46     _RL myTime
47     INTEGER myThid
48    
49     #ifdef ALLOW_SHAP_FILT
50    
51     C !LOCAL VARIABLES:
52     C == Local variables ==
53     INTEGER bi,bj,k,i,j,N
54     _RL tmpGrdU(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
55     _RL tmpGrdV(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
56     _RL maskZj,maskZp
57     _RL noSlipFact
58     CEOP
59    
60     noSlipFact = Shap_noSlip*2. _d 0
61    
62     IF (nShapUV.gt.0) THEN
63    
64     DO bj=myByLo(myThid),myByHi(myThid)
65     DO bi=myBxLo(myThid),myBxHi(myThid)
66     DO k=1,kSize
67     DO j=1-OLy,sNy+OLy
68     DO i=1-OLx,sNx+OLx
69     tmpFldU(i,j,k,bi,bj)=uFld(i,j,k,bi,bj)
70     & *_maskW(i,j,k,bi,bj)
71     tmpFldV(i,j,k,bi,bj)=vFld(i,j,k,bi,bj)
72     & *_maskS(i,j,k,bi,bj)
73     ENDDO
74     ENDDO
75     ENDDO
76     ENDDO
77     ENDDO
78    
79    
80     C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
81    
82     C [d_xx+d_yy]^n tmpFld
83    
84     DO N=1,nShapUV
85    
86     IF (kSize.EQ.Nr) THEN
87     CALL EXCH_UV_XYZ_RL(tmpFldU,tmpFldV,.TRUE.,myThid)
88     ELSE
89     CALL EXCH_UV_XY_RL(tmpFldU,tmpFldV,.TRUE.,myThid)
90     ENDIF
91    
92    
93     DO bj=myByLo(myThid),myByHi(myThid)
94     DO bi=myBxLo(myThid),myBxHi(myThid)
95     DO k=1,kSize
96    
97     C Uxx + Uyy :
98     DO j=1,sNy
99     DO i=1,sNx+1
100     maskZj=_maskS(i-1, j ,k,bi,bj)*_maskS( i , j ,k,bi,bj)
101     maskZp=_maskS(i-1,j+1,k,bi,bj)*_maskS( i ,j+1,k,bi,bj)
102     tmpGrdU(i,j) =
103     & tmpFldU(i-1,j,k,bi,bj) + tmpFldU(i+1,j,k,bi,bj)
104     & - 2.*tmpFldU(i,j,k,bi,bj)
105     & +(tmpFldU(i,j+1,k,bi,bj)-tmpFldU(i, j ,k,bi,bj))*maskZp
106     & -(tmpFldU(i, j ,k,bi,bj)-tmpFldU(i,j-1,k,bi,bj))*maskZj
107     & -noSlipFact*(2.-maskZj-maskZp)*tmpFldU(i,j,k,bi,bj)
108     ENDDO
109     ENDDO
110    
111     IF (useCubedSphereExchange) THEN
112     DO i=1,sNx+1,sNx
113     j=1
114     maskZj=_maskS(i-1, j ,k,bi,bj)*_maskS( i , j ,k,bi,bj)
115     maskZp=_maskS(i-1,j+1,k,bi,bj)*_maskS( i ,j+1,k,bi,bj)
116     tmpGrdU(i,j) =
117     & tmpFldU(i-1,j,k,bi,bj) + tmpFldU(i+1,j,k,bi,bj)
118     & - 2.*tmpFldU(i,j,k,bi,bj)
119     & +(tmpFldU(i,j+1,k,bi,bj)-tmpFldU(i, j ,k,bi,bj))*maskZp
120     & -(tmpFldU(i,j,k,bi,bj)-0*tmpFldU(i,j-1,k,bi,bj))*maskZj
121     & -noSlipFact*(2.-maskZj-maskZp)*tmpFldU(i,j,k,bi,bj)
122     j=sNy
123     maskZj=_maskS(i-1, j ,k,bi,bj)*_maskS( i , j ,k,bi,bj)
124     maskZp=_maskS(i-1,j+1,k,bi,bj)*_maskS( i ,j+1,k,bi,bj)
125     tmpGrdU(i,j) =
126     & tmpFldU(i-1,j,k,bi,bj) + tmpFldU(i+1,j,k,bi,bj)
127     & - 2.*tmpFldU(i,j,k,bi,bj)
128     & +(0*tmpFldU(i,j+1,k,bi,bj)-tmpFldU(i,j,k,bi,bj))*maskZp
129     & -(tmpFldU(i, j ,k,bi,bj)-tmpFldU(i,j-1,k,bi,bj))*maskZj
130     & -noSlipFact*(2.-maskZj-maskZp)*tmpFldU(i,j,k,bi,bj)
131     ENDDO
132     ENDIF
133    
134     DO j=1,sNy
135     DO i=1,sNx+1
136     tmpFldU(i,j,k,bi,bj) =
137     & -0.125 _d 0*tmpGrdU(i,j)*_maskW(i,j,k,bi,bj)
138     ENDDO
139     ENDDO
140    
141     C Vyy + Vxx :
142     DO j=1,sNy+1
143     DO i=1,sNx
144     maskZj=_maskW( i ,j-1,k,bi,bj)*_maskW( i , j ,k,bi,bj)
145     maskZp=_maskW(i+1,j-1,k,bi,bj)*_maskW(i+1, j ,k,bi,bj)
146     tmpGrdV(i,j) =
147     & tmpFldV(i,j-1,k,bi,bj) + tmpFldV(i,j+1,k,bi,bj)
148     & - 2.*tmpFldV(i,j,k,bi,bj)
149     & +(tmpFldV(i+1,j,k,bi,bj)-tmpFldV( i ,j,k,bi,bj))*maskZp
150     & -(tmpFldV( i ,j,k,bi,bj)-tmpFldV(i-1,j,k,bi,bj))*maskZj
151     & -noSlipFact*(2.-maskZj-maskZp)*tmpFldV(i,j,k,bi,bj)
152     ENDDO
153     ENDDO
154    
155     IF (useCubedSphereExchange) THEN
156     DO j=1,sNy+1,sNy
157     i=1
158     maskZj=_maskW( i ,j-1,k,bi,bj)*_maskW( i , j ,k,bi,bj)
159     maskZp=_maskW(i+1,j-1,k,bi,bj)*_maskW(i+1, j ,k,bi,bj)
160     tmpGrdV(i,j) =
161     & tmpFldV(i,j-1,k,bi,bj) + tmpFldV(i,j+1,k,bi,bj)
162     & - 2.*tmpFldV(i,j,k,bi,bj)
163     & +(tmpFldV(i+1,j,k,bi,bj)-tmpFldV( i ,j,k,bi,bj))*maskZp
164     & -(tmpFldV(i,j,k,bi,bj)-0*tmpFldV(i-1,j,k,bi,bj))*maskZj
165     & -noSlipFact*(2.-maskZj-maskZp)*tmpFldV(i,j,k,bi,bj)
166     i=sNx
167     maskZj=_maskW( i ,j-1,k,bi,bj)*_maskW( i , j ,k,bi,bj)
168     maskZp=_maskW(i+1,j-1,k,bi,bj)*_maskW(i+1, j ,k,bi,bj)
169     tmpGrdV(i,j) =
170     & tmpFldV(i,j-1,k,bi,bj) + tmpFldV(i,j+1,k,bi,bj)
171     & - 2.*tmpFldV(i,j,k,bi,bj)
172     & +(0*tmpFldV(i+1,j,k,bi,bj)-tmpFldV(i,j,k,bi,bj))*maskZp
173     & -(tmpFldV( i ,j,k,bi,bj)-tmpFldV(i-1,j,k,bi,bj))*maskZj
174     & -noSlipFact*(2.-maskZj-maskZp)*tmpFldV(i,j,k,bi,bj)
175     ENDDO
176     ENDIF
177    
178     DO j=1,sNy+1
179     DO i=1,sNx
180     tmpFldV(i,j,k,bi,bj) =
181     & -0.125 _d 0*tmpGrdV(i,j)*_maskS(i,j,k,bi,bj)
182     ENDDO
183     ENDDO
184    
185     ENDDO
186     ENDDO
187     ENDDO
188    
189     ENDDO
190    
191     C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
192    
193     C F <- [1 - (d_xx+d_yy)^n *deltaT/tau].F
194    
195     DO bj=myByLo(myThid),myByHi(myThid)
196     DO bi=myBxLo(myThid),myBxHi(myThid)
197     DO k=1,kSize
198     DO j=1,sNy
199     DO i=1,sNx+1
200     uFld(i,j,k,bi,bj)=uFld(i,j,k,bi,bj)
201     & -tmpFldU(i,j,k,bi,bj)*deltaTmom/Shap_uvtau
202     ENDDO
203     ENDDO
204     DO j=1,sNy+1
205     DO i=1,sNx
206     vFld(i,j,k,bi,bj)=vFld(i,j,k,bi,bj)
207     & -tmpFldV(i,j,k,bi,bj)*deltaTmom/Shap_uvtau
208     ENDDO
209     ENDDO
210     ENDDO
211     ENDDO
212     ENDDO
213    
214     IF (kSize.EQ.Nr) THEN
215     CALL EXCH_UV_XYZ_RL(uFld,vFld,.TRUE.,myThid)
216     ELSEIF (kSize.EQ.1) THEN
217     CALL EXCH_UV_XY_RL(uFld,vFld,.TRUE.,myThid)
218     ELSE
219     STOP 'S/R SHAP_FILT_UV_S2C: kSize is wrong'
220     ENDIF
221    
222     ENDIF
223     #endif /* ALLOW_SHAP_FILT */
224    
225     RETURN
226     END
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