MODULE advec_w_up_mod !------------------------------------------------------------------------------! ! Current revisions: ! ----------------- ! ! ! Former revisions: ! ----------------- ! $Id: advec_w_up.f90 484 2010-02-05 07:36:54Z maronga $ ! RCS Log replace by Id keyword, revision history cleaned up ! ! Revision 1.11 2006/02/23 09:47:23 raasch ! *** empty log message *** ! ! Revision 1.1 1997/08/29 08:56:33 raasch ! Initial revision ! ! ! Description: ! ------------ ! Advection term for the w velocity-component using upstream scheme. ! NOTE: vertical advection at k=1 still has wrong grid spacing for w>0 ! The same problem occurs for all topography boundaries! !------------------------------------------------------------------------------! PRIVATE PUBLIC advec_w_up INTERFACE advec_w_up MODULE PROCEDURE advec_w_up MODULE PROCEDURE advec_w_up_ij END INTERFACE advec_w_up CONTAINS !------------------------------------------------------------------------------! ! Call for all grid points !------------------------------------------------------------------------------! SUBROUTINE advec_w_up USE arrays_3d USE control_parameters USE grid_variables USE indices IMPLICIT NONE INTEGER :: i, j, k REAL :: ukomp, vkomp DO i = nxl, nxr DO j = nys, nyn DO k = nzb_w_inner(j,i)+1, nzt-1 ! !-- x-direction ukomp = 0.25 * ( u(k,j,i) + u(k,j,i+1) + & u(k+1,j,i) + u(k+1,j,i+1) ) - u_gtrans IF ( ukomp > 0.0 ) THEN tend(k,j,i) = tend(k,j,i) - ukomp * & ( w(k,j,i) - w(k,j,i-1) ) * ddx ELSE tend(k,j,i) = tend(k,j,i) - ukomp * & ( w(k,j,i+1) - w(k,j,i) ) * ddx ENDIF ! !-- y-direction vkomp = 0.25 * ( v(k,j,i) + v(k,j+1,i) + & v(k+1,j,i) + v(k+1,j+1,i) ) - v_gtrans IF ( vkomp > 0.0 ) THEN tend(k,j,i) = tend(k,j,i) - vkomp * & ( w(k,j,i) - w(k,j-1,i) ) * ddy ELSE tend(k,j,i) = tend(k,j,i) - vkomp * & ( w(k,j+1,i) - w(k,j,i) ) * ddy ENDIF ! !-- z-direction IF ( w(k,j,i) > 0.0 ) THEN tend(k,j,i) = tend(k,j,i) - w(k,j,i) * & ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) ELSE tend(k,j,i) = tend(k,j,i) - w(k,j,i) * & ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) ENDIF ENDDO ENDDO ENDDO END SUBROUTINE advec_w_up !------------------------------------------------------------------------------! ! Call for grid point i,j !------------------------------------------------------------------------------! SUBROUTINE advec_w_up_ij( i, j ) USE arrays_3d USE control_parameters USE grid_variables USE indices IMPLICIT NONE INTEGER :: i, j, k REAL :: ukomp, vkomp DO k = nzb_w_inner(j,i)+1, nzt-1 ! !-- x-direction ukomp = 0.25 * ( u(k,j,i) + u(k,j,i+1) + u(k+1,j,i) + u(k+1,j,i+1) & ) - u_gtrans IF ( ukomp > 0.0 ) THEN tend(k,j,i) = tend(k,j,i) - ukomp * & ( w(k,j,i) - w(k,j,i-1) ) * ddx ELSE tend(k,j,i) = tend(k,j,i) - ukomp * & ( w(k,j,i+1) - w(k,j,i) ) * ddx ENDIF ! !-- y-direction vkomp = 0.25 * ( v(k,j,i) + v(k,j+1,i) + v(k+1,j,i) + v(k+1,j+1,i) & ) - v_gtrans IF ( vkomp > 0.0 ) THEN tend(k,j,i) = tend(k,j,i) - vkomp * & ( w(k,j,i) - w(k,j-1,i) ) * ddy ELSE tend(k,j,i) = tend(k,j,i) - vkomp * & ( w(k,j+1,i) - w(k,j,i) ) * ddy ENDIF ! !-- z-direction IF ( w(k,j,i) > 0.0 ) THEN tend(k,j,i) = tend(k,j,i) - w(k,j,i) * & ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) ELSE tend(k,j,i) = tend(k,j,i) - w(k,j,i) * & ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) ENDIF ENDDO END SUBROUTINE advec_w_up_ij END MODULE advec_w_up_mod