Changeset 12489 for NEMO/trunk/src/OCE/BDY/bdylib.F90

Timestamp:

2020-02-28T16:55:11+01:00 (4 years ago)

Author:

davestorkey

Message:

Preparation for new timestepping scheme #2390.
Main changes:

1. Initial euler timestep now handled in stp and not in TRA/DYN routines.
2. Renaming of all timestep parameters. In summary, the namelist parameter is now rn_Dt and the current timestep is rDt (and rDt_ice, rDt_trc etc).
3. Renaming of a few miscellaneous parameters, eg. atfp -> rn_atfp (namelist parameter used everywhere) and rau0 -> rho0.

This version gives bit-comparable results to the previous version of the trunk.

File:

• NEMO/trunk/src/OCE/BDY/bdylib.F90 (modified) (3 diffs)

NEMO/trunk/src/OCE/BDY/bdylib.F90

@@ -240 +240 @@
          ! Centred derivative is calculated as average of "left" and "right" derivatives for 
          ! this reason. 
-         ! Note no rdt factor in expression for zdt because it cancels in the expressions for 
+         ! Note no rn_Dt factor in expression for zdt because it cancels in the expressions for 
          ! zrx and zry.
          zdt   =     phia(iibm1   ,ijbm1   ) - phib(iibm1   ,ijbm1   )
@@ -259 +259 @@
          zout = sign( 1., zrx )
          zout = 0.5*( zout + abs(zout) )
-         zwgt = 2.*rdt*( (1.-zout) * idx%nbd(jb,igrd) + zout * idx%nbdout(jb,igrd) )
+         zwgt = 2.*rn_Dt*( (1.-zout) * idx%nbd(jb,igrd) + zout * idx%nbdout(jb,igrd) )
          ! only apply radiation on outflow points 
          if( ll_npo ) then     !! NPO version !!
@@ -425 +425 @@
             zout = sign( 1., zrx )
             zout = 0.5*( zout + abs(zout) )
-            zwgt = 2.*rdt*( (1.-zout) * idx%nbd(jb,igrd) + zout * idx%nbdout(jb,igrd) )
+            zwgt = 2.*rn_Dt*( (1.-zout) * idx%nbd(jb,igrd) + zout * idx%nbdout(jb,igrd) )
             ! only apply radiation on outflow points 
             if( ll_npo ) then     !! NPO version !!