Changeset 4647 for palm/trunk/SOURCE/synthetic_turbulence_generator_mod.f90

Timestamp:

Aug 24, 2020 4:36:18 PM (4 years ago)

Author:

suehring

Message:

Change default value of synthetic turbulence adjustment as well as compute_velocity_seeds_local. By default, the random-seed computation is now distributed among several cores. Especially for large length scales this is significantly faster.

File:

• palm/trunk/SOURCE/synthetic_turbulence_generator_mod.f90 (modified) (2 diffs)

palm/trunk/SOURCE/synthetic_turbulence_generator_mod.f90

@@ -25 +25 @@
 ! -----------------
 ! $Id$
+! Change default value of synthetic turbulence adjustment as well as compute_velocity_seeds_local 
+! By default, the random-seed computation is now distributed among several cores. Especially for 
+! large length scales this is significantly faster.
+!
+! 4640 2020-08-11 16:28:32Z suehring
 ! - to avoid that the correction term in r11/r22 computation becomes unrealistically high, limit 
 !   Obukhov length (term is not valid for near neutral conditions)
@@ -345 +350 @@
     LOGICAL ::  adjustment_step               = .FALSE.  !< control flag indicating that time and lenght scales have been updated and
                                                          !< no time correlation to the timestep before should be considered
-    LOGICAL ::  compute_velocity_seeds_local  = .TRUE.   !< switch to decide whether velocity seeds are computed locally
+    LOGICAL ::  compute_velocity_seeds_local  = .FALSE.   !< switch to decide whether velocity seeds are computed locally
                                                          !< or if computation is distributed over several processes
     LOGICAL ::  parametrize_inflow_turbulence = .FALSE.  !< flag indicating that inflow turbulence is either read from file