|
[Sponsors] |
March 28, 2009, 09:01 |
about DEFINE_SOURCE(name, c, t, dS, eqn)
|
#1 |
New Member
liuxiao
Join Date: Mar 2009
Posts: 10
Rep Power: 17 |
dear all
the UDF manual says that the dS is the source term derivative. Does this term is indispensable or optional? it seems that this term is just used to aid stability, but i am not sure. in my case, if dS was added, the converging rate was very very very slow. howerver, if i didn't set the value of dS, the rate is very rapid.look forward to you reply!! |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Sudden/random deviation of poisson eqn results | zonexo | Main CFD Forum | 1 | December 11, 2006 04:21 |
Multigrid or Krylov subspace for poisson eqn | zonexo | Main CFD Forum | 1 | May 5, 2006 03:26 |
why compressible flow solving isnt need energy Eqn | starPlatinum | Main CFD Forum | 1 | July 21, 2003 10:15 |
UDFs for Scalar Eqn - Fluid/Solid HT | Greg Perkins | FLUENT | 0 | October 13, 2000 23:03 |
UDFs for Scalar Eqn - Fluid/Solid HT | Greg Perkins | FLUENT | 0 | October 11, 2000 03:43 |