(force) minor change to dtclean to prevent it from being the shortest…

… timestep in hydro sims
danieljprice · Apr 21, 2021 · ea06b49 · ea06b49
1 parent f016c85
commit ea06b49
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/main/force.F90 b/src/main/force.F90
@@ -2841,8 +2841,8 @@ subroutine finish_cell_and_store_results(icall,cell,fxyzu,xyzh,vxyzu,poten,dt,dv
              !   coefficient of 0.5 was empirically determined, but may be required
              !   for all MHD simulations, not just those with hdivbbmax > 1.0
              !dtclean   = 0.5*C_cour*hi/(hdivbbmax * vwavei + epsilon(0.))  ! line 1
-              if (hdivbbmax > 1.0) hdivbbmax = 2.0*hdivbbmax               ! line 2a
-              dtclean   = C_cour*hi/(hdivbbmax * vwavei + epsilon(0.))     ! line 2b
+             if (hdivbbmax > 1.0) hdivbbmax = 2.0*hdivbbmax                 ! line 2a
+             dtclean   = C_cour*hi/(hdivbbmax * vwavei + tiny(0.))          ! line 2b
           endif
        endif