/[MITgcm]/MITgcm/pkg/mom_fluxform/mom_u_del2u.F
ViewVC logotype

Contents of /MITgcm/pkg/mom_fluxform/mom_u_del2u.F

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph

Revision 1.3 - (show annotations) (download)
Wed Sep 26 19:05:21 2001 UTC (22 years, 7 months ago) by adcroft
Branch: MAIN
CVS Tags: checkpoint46n_post, checkpoint47e_post, checkpoint44e_post, checkpoint46l_post, checkpoint46g_pre, checkpoint47c_post, release1_p13_pre, checkpoint46f_post, checkpoint44f_post, checkpoint46b_post, checkpoint43a-release1mods, release1_p13, checkpoint46l_pre, chkpt44d_post, release1_p8, release1_p9, release1_p1, release1_p2, release1_p3, release1_p4, release1_p5, release1_p6, release1_p7, checkpoint44e_pre, release1_b1, checkpoint48b_post, checkpoint43, checkpoint48c_pre, checkpoint47d_pre, release1_chkpt44d_post, checkpoint47a_post, checkpoint48d_pre, checkpoint47i_post, release1_p11, checkpoint47d_post, icebear5, icebear4, icebear3, icebear2, checkpoint46d_pre, checkpoint48d_post, release1-branch_tutorials, checkpoint45d_post, checkpoint46j_pre, chkpt44a_post, checkpoint44h_pre, checkpoint46a_post, checkpoint47g_post, checkpoint46j_post, checkpoint46k_post, chkpt44c_pre, checkpoint48a_post, checkpoint45a_post, ecco_c44_e19, ecco_c44_e18, ecco_c44_e17, ecco_c44_e16, release1_p12, release1_p10, release1_p16, release1_p17, release1_p14, release1_p15, checkpoint47j_post, branch-exfmods-tag, checkpoint44g_post, checkpoint46e_pre, checkpoint48c_post, checkpoint45b_post, checkpoint46b_pre, release1-branch-end, release1_final_v1, checkpoint46c_pre, checkpoint46, checkpoint47b_post, checkpoint44b_post, checkpoint46h_pre, checkpoint46m_post, checkpoint46a_pre, checkpoint45c_post, ecco_ice2, ecco_ice1, checkpoint44h_post, checkpoint46g_post, release1_p12_pre, ecco_c44_e22, ecco_c44_e25, checkpoint47f_post, chkpt44a_pre, checkpoint46i_post, ecco_c44_e23, ecco_c44_e20, ecco_c44_e21, ecco_c44_e26, ecco_c44_e27, ecco_c44_e24, checkpoint46c_post, ecco-branch-mod1, ecco-branch-mod2, ecco-branch-mod3, ecco-branch-mod4, ecco-branch-mod5, checkpoint46e_post, release1_beta1, checkpoint44b_pre, checkpoint42, checkpoint41, checkpoint47, checkpoint44, checkpoint45, checkpoint48, checkpoint46h_post, chkpt44c_post, checkpoint47h_post, checkpoint44f_pre, checkpoint46d_post, release1-branch_branchpoint
Branch point for: c24_e25_ice, branch-exfmods-curt, release1_final, release1-branch, release1, ecco-branch, release1_50yr, icebear, release1_coupled
Changes since 1.2: +24 -11 lines 
Added comments in form compatible with "protex".
1 C $Header: /u/gcmpack/models/MITgcmUV/pkg/mom_fluxform/mom_u_del2u.F,v 1.2 2001/05/29 14:01:38 adcroft Exp $
2 C $Name: $
3
4 #include "CPP_OPTIONS.h"
5
6 CBOP
7 C !ROUTINE: MOM_U_DEL2U
8
9 C !INTERFACE: ==========================================================
10 SUBROUTINE MOM_U_DEL2U(
11 I bi,bj,k,
12 I uFld, hFacZ,
13 O del2u,
14 I myThid)
15
16 C !DESCRIPTION:
17 C Calculates the Laplacian of zonal flow
18
19 C !USES: ===============================================================
20 IMPLICIT NONE
21 #include "SIZE.h"
22 #include "EEPARAMS.h"
23 #include "PARAMS.h"
24 #include "GRID.h"
25 #include "DYNVARS.h"
26
27 C !INPUT PARAMETERS: ===================================================
28 C bi,bj :: tile indices
29 C k :: vertical level
30 C uFld :: zonal flow
31 C hFacZ :: fractional thickness at vorticity points
32 C myThid :: thread number
33 INTEGER bi,bj,k
34 _RL uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
35 _RS hFacZ(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
36 INTEGER myThid
37
38 C !OUTPUT PARAMETERS: ==================================================
39 C del2u :: Laplacian
40 _RL del2u(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
41
42 C !LOCAL VARIABLES: ====================================================
43 C i,j :: loop indices
44 INTEGER I,J
45 _RL fZon(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
46 _RL fMer(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
47 _RS hFacZClosedS,hFacZClosedN
48 CEOP
49
50 C Zonal flux d/dx U
51 DO j=1-Oly,sNy+Oly
52 DO i=1-Olx,sNx+Olx-1
53 fZon(i,j) = drF(k)*_hFacC(i,j,k,bi,bj)
54 & *_dyF(i,j,bi,bj)
55 & *_recip_dxF(i,j,bi,bj)
56 & *(uFld(i+1,j)-uFld(i,j))
57 #ifdef COSINEMETH_III
58 & *sqcosFacU(J,bi,bj)
59 #endif
60 ENDDO
61 ENDDO
62
63 C Meridional flux d/dy U
64 DO j=1-Oly+1,sNy+Oly
65 DO i=1-Olx,sNx+Olx
66 fMer(i,j) = drF(k)*hFacZ(i,j)
67 & *_dxV(i,j,bi,bj)
68 & *_recip_dyU(i,j,bi,bj)
69 & *(uFld(i,j)-uFld(i,j-1))
70 ENDDO
71 ENDDO
72
73 C del^2 U
74 DO j=0,sNy+1
75 DO i=0,sNx+2
76 del2u(i,j) =
77 & recip_drF(k)*_recip_hFacW(i,j,k,bi,bj)
78 & *recip_rAw(i,j,bi,bj)
79 & *( fZon(i,j ) - fZon(i-1,j)
80 & +fMer(i,j+1) - fMer(i ,j)
81 & )*_maskW(i,j,k,bi,bj)
82 ENDDO
83 ENDDO
84
85 IF (no_slip_sides) THEN
86 C-- No-slip BCs impose a drag at walls...
87 DO j=0,sNy+1
88 DO i=0,sNx+2
89 hFacZClosedS = _hFacW(i,j,k,bi,bj) - hFacZ(i,j)
90 hFacZClosedN = _hFacW(i,j,k,bi,bj) - hFacZ(i,j+1)
91 del2u(i,j) = del2u(i,j)
92 & - _recip_hFacW(i,j,k,bi,bj)*recip_drF(k)
93 & *recip_rAw(i,j,bi,bj)
94 & *( hFacZClosedS*dxV(i, j ,bi,bj)
95 & *_recip_dyU(i, j ,bi,bj)
96 & +hFacZClosedN*dxV(i,j+1,bi,bj)
97 & *_recip_dyU(i,j+1,bi,bj)
98 & )*drF(k)*2.*uFld(i,j)
99 & *_maskW(i,j,k,bi,bj)
100 ENDDO
101 ENDDO
102 ENDIF
103
104 RETURN
105 END
  ViewVC Help
Powered by ViewVC 1.1.22