CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   eddy dissipation concept (http://www.cfd-online.com/Forums/fluent/33572-eddy-dissipation-concept.html)

sisilxp April 23, 2004 23:04

eddy dissipation concept
 
hello everybody:

the reaction mechanism i used is the eddy dissipation concept model,but before the iteration,an error message occured:

it is:

error:rmap2:ddasac failure

what's the meaning of this????

thanks a lot

zxaar April 26, 2004 12:40

Re: eddy dissipation concept
 
try increasing the memory for ISAT table from 100mb to around 400 mb

might help.

cg April 26, 2004 18:45

Re: eddy dissipation concept
 
dasac is the ODE integrator. It will diverge with stiff chemistry and bad initial conditions. Follow the EDC tutorial (which starts from an equilibrium Partially-Premixed solution for the initial condition).

Karthick May 9, 2004 06:12

Re: eddy dissipation concept
 
When you will use Eddy Dissipation concept model?

Regards Karthick

sisilxp May 13, 2004 06:11

Re: eddy dissipation concept
 
i simulate high temperature air combustion with several reaction mechanism. if i use other combustion model, it did not run well

regards sisilxp

sisilxp May 13, 2004 06:13

Re: eddy dissipation concept
 
thank you! zxaar


All times are GMT -4. The time now is 14:02.