Changeset 5162 for anuga_core/source/anuga/config.py

Timestamp:

Mar 11, 2008, 8:43:22 PM (17 years ago)

Author:

steve

Message:

Updated some methods for quantity. Looks like we can use old
limiting system with larger values of beta.

File:

• anuga_core/source/anuga/config.py (modified) (1 diff)

anuga_core/source/anuga/config.py

@@ -100 +100 @@
 #timestepping_method = 'rk2'   # 2nd Order TVD scheme
 
+# rk2 is a little more stable than euler, so rk2 timestepping
+# can deal with a larger beta when slope limiting the reconstructed
+# solution. The large beta is needed if solving problems sensitive
+# to numerical diffusion, like a small forced wave in an ocean
+beta_euler = 1.0
+beta_rk2   = 1.6
+
+
+
 # Option to search for signatures where isolated triangles are
 # responsible for a small global timestep.