[328] | 1 | MODULE sponge_mod |
---|
| 2 | USE icosa |
---|
| 3 | |
---|
| 4 | PRIVATE |
---|
| 5 | |
---|
| 6 | REAL,SAVE :: tau_sponge !inverse of charactericstic relaxation time scale at the topmost layer (Hz) |
---|
| 7 | INTEGER,SAVE :: iflag_sponge !0 --> for no sponge |
---|
| 8 | !1 --> for sponge over 4 topmost layers |
---|
| 9 | !2 --> for sponge from top to ~1% of top layer pressure |
---|
| 10 | INTEGER,SAVE :: mode_sponge !1 --> u and v relax towards 0 |
---|
| 11 | !2 --> u and v relax towards their zonal mean |
---|
| 12 | !3 --> u,v and pot. temp. relax towards their zonal mean |
---|
| 13 | !$OMP THREADPRIVATE(tau_sponge,iflag_sponge,mode_sponge) |
---|
| 14 | REAL,ALLOCATABLE,SAVE :: rdamp(:) ! quenching coefficient |
---|
| 15 | REAL,ALLOCATABLE,SAVE:: lambda(:) ! inverse or quenching time scale (Hz) |
---|
| 16 | |
---|
| 17 | PUBLIC sponge, init_sponge, iflag_sponge |
---|
| 18 | |
---|
| 19 | CONTAINS |
---|
| 20 | |
---|
| 21 | SUBROUTINE init_sponge |
---|
| 22 | USE icosa |
---|
| 23 | USE disvert_mod |
---|
| 24 | USE omp_para |
---|
| 25 | USE mpipara, ONLY: is_mpi_master |
---|
[953] | 26 | USE abort_mod |
---|
[328] | 27 | IMPLICIT NONE |
---|
| 28 | INTEGER :: l |
---|
| 29 | |
---|
| 30 | tau_sponge = 1.e-4 |
---|
| 31 | CALL getin("tau_sponge",tau_sponge) |
---|
| 32 | PRINT*,'tau_sponge = ',tau_sponge |
---|
| 33 | |
---|
| 34 | iflag_sponge = 0 |
---|
| 35 | CALL getin("iflag_sponge",iflag_sponge) |
---|
| 36 | PRINT*,'iflag_sponge = ',iflag_sponge |
---|
| 37 | |
---|
| 38 | mode_sponge = 1 |
---|
| 39 | CALL getin("mode_sponge",mode_sponge) |
---|
| 40 | PRINT*,'mode_sponge = ',mode_sponge |
---|
| 41 | |
---|
| 42 | IF (iflag_sponge == 0) THEN |
---|
| 43 | PRINT*,'init_sponge: no sponge' |
---|
| 44 | RETURN |
---|
| 45 | ENDIF |
---|
| 46 | |
---|
[953] | 47 | IF (iflag_sponge > 0) THEN |
---|
| 48 | CALL abort_acc("iflag_sponge > 0") |
---|
| 49 | END IF |
---|
| 50 | |
---|
[328] | 51 | !$OMP MASTER |
---|
| 52 | ALLOCATE(rdamp(llm)) |
---|
| 53 | ALLOCATE(lambda(llm)) |
---|
| 54 | |
---|
| 55 | IF (iflag_sponge == 1) THEN |
---|
| 56 | ! sponge quenching over the topmost 4 atmospheric layers |
---|
| 57 | lambda(:)=0. |
---|
| 58 | lambda(llm)=tau_sponge |
---|
| 59 | lambda(llm-1)=tau_sponge/2. |
---|
| 60 | lambda(llm-2)=tau_sponge/4. |
---|
| 61 | lambda(llm-3)=tau_sponge/8. |
---|
| 62 | ELSE IF (iflag_sponge == 2) THEN |
---|
| 63 | ! sponge quenching over topmost layers down to pressures which are |
---|
| 64 | ! higher than 100 times the topmost layer pressure |
---|
| 65 | lambda(:)=tau_sponge*max(presnivs(llm)/presnivs(:)-0.01,0.) |
---|
| 66 | ELSE |
---|
| 67 | PRINT*,'Bad selector for variable iflag_sponge : <',iflag_sponge, & |
---|
| 68 | '> options are 0,1,2' |
---|
| 69 | STOP |
---|
| 70 | ENDIF |
---|
| 71 | |
---|
| 72 | ! quenching coefficient rdamp(:) |
---|
| 73 | ! rdamp(:)=dt*lambda(:) ! Explicit Euler approx. |
---|
| 74 | ! rdamp(:)=1.-exp(-lambda(:)*dt) |
---|
| 75 | rdamp(:)=itau_dissip*lambda(:) |
---|
| 76 | |
---|
| 77 | |
---|
| 78 | IF (is_mpi_master) THEN |
---|
| 79 | PRINT*,'lambda = ' |
---|
| 80 | DO l=ll_begin,ll_end |
---|
| 81 | PRINT*,l,lambda(l) |
---|
| 82 | ENDDO |
---|
| 83 | PRINT*,'rdamp = ' |
---|
| 84 | DO l=ll_begin,ll_end |
---|
| 85 | PRINT*,l,rdamp(l) |
---|
| 86 | ENDDO |
---|
| 87 | ENDIF |
---|
| 88 | !$OMP END MASTER |
---|
| 89 | !$OMP BARRIER |
---|
| 90 | |
---|
| 91 | END SUBROUTINE init_sponge |
---|
| 92 | |
---|
| 93 | SUBROUTINE sponge(f_ue,f_due,f_theta_rhodz,f_dtheta_rhodz) |
---|
| 94 | USE icosa |
---|
| 95 | USE theta2theta_rhodz_mod |
---|
| 96 | USE pression_mod |
---|
| 97 | USE exner_mod |
---|
| 98 | USE geopotential_mod |
---|
| 99 | USE trace |
---|
| 100 | USE time_mod |
---|
| 101 | USE omp_para |
---|
| 102 | IMPLICIT NONE |
---|
| 103 | TYPE(t_field),POINTER :: f_ue(:) |
---|
| 104 | TYPE(t_field),POINTER :: f_due(:) |
---|
| 105 | TYPE(t_field),POINTER :: f_theta_rhodz(:) |
---|
| 106 | TYPE(t_field),POINTER :: f_dtheta_rhodz(:) |
---|
| 107 | |
---|
| 108 | REAL(rstd),POINTER :: due(:,:)!,due_sponge(:,:) |
---|
| 109 | REAL(rstd),POINTER :: ue(:,:) |
---|
[513] | 110 | REAL(rstd),POINTER :: theta_rhodz(:,:,:) |
---|
| 111 | REAL(rstd),POINTER :: dtheta_rhodz(:,:,:)!,dtheta_sponge(:,:) |
---|
[328] | 112 | |
---|
| 113 | INTEGER :: ind |
---|
| 114 | INTEGER :: l,ij |
---|
| 115 | |
---|
| 116 | !$OMP BARRIER |
---|
| 117 | |
---|
| 118 | CALL trace_start("sponge") |
---|
| 119 | |
---|
| 120 | IF (mode_sponge == 1) THEN |
---|
| 121 | DO ind=1,ndomain |
---|
| 122 | IF (.NOT. assigned_domain(ind)) CYCLE |
---|
| 123 | CALL swap_dimensions(ind) |
---|
| 124 | CALL swap_geometry(ind) |
---|
| 125 | ue=f_ue(ind) |
---|
| 126 | due=f_due(ind) |
---|
| 127 | theta_rhodz=f_theta_rhodz(ind) |
---|
| 128 | dtheta_rhodz=f_dtheta_rhodz(ind) |
---|
| 129 | |
---|
| 130 | DO l=ll_begin,ll_end |
---|
| 131 | !$SIMD |
---|
| 132 | DO ij=ij_begin,ij_end |
---|
| 133 | |
---|
| 134 | due(ij+u_right,l) = -rdamp(l)*ue(ij+u_right,l) |
---|
| 135 | due(ij+u_lup,l) = -rdamp(l)*ue(ij+u_lup,l) |
---|
| 136 | due(ij+u_ldown,l) = -rdamp(l)*ue(ij+u_ldown,l) |
---|
| 137 | |
---|
[513] | 138 | dtheta_rhodz(ij,l,:) = 0.0 |
---|
[328] | 139 | ENDDO |
---|
| 140 | ENDDO |
---|
| 141 | END DO |
---|
| 142 | ELSE |
---|
| 143 | PRINT*,'Bad selector for variable mode_sponge : <',mode_sponge, & |
---|
| 144 | '> options 2 and 3 not available for the moment!' |
---|
| 145 | STOP |
---|
| 146 | ENDIF |
---|
| 147 | |
---|
| 148 | CALL trace_end("sponge") |
---|
| 149 | |
---|
| 150 | !$OMP BARRIER |
---|
| 151 | END SUBROUTINE sponge |
---|
| 152 | |
---|
| 153 | END MODULE sponge_mod |
---|