|September 25, 2009, 01:26||
patching problem unsteady solver
Join Date: Aug 2009
Posts: 6Rep Power: 8
i have a problem with the unsteady solver. i am trying to simulate the combustion of propane/air in a channel (length=1 to 5cm, gap size= 0.5 to 1 mm). i am using species transport model, with volume and wall surface reaction. after running several simulations with the steady state solver, i want to look now at the ignition behavior of this mixture. hence i am using the unsteady solver now.
this is my problem: i initialize with default values and patch a high temperature in the whole channel; reaction doesn't take place.
i initialize with default values, but with a high temperature; reaction takes place, but temperature remains the same (initialized with 1500K --> temperature remains unaffected about 1500K; initialized with 1000 --> temperature remains unaffected about 1000K)
what is the reason for this, what am i doing wrong. any suggestions?
further i want to patch a high temperature just at the inlet domain. how can i do this? i can just select the channel and the solid wall as a domain.
thanks for your help
|Thread||Thread Starter||Forum||Replies||Last Post|
|On Setring Step Size in unsteady Solver of FLUENT||lzgwhy||FLUENT||0||August 19, 2009 22:44|
|Wmake problem interFoam solver||feijooos||OpenFOAM Running, Solving & CFD||4||December 8, 2008 12:01|
|Unsteady Boundary Layer Problem||C.J.Yoon||Main CFD Forum||0||January 27, 2006 05:19|
|Time step for unsteady problem||Jackie||CFX||4||January 19, 2004 00:51|
|Question concerning about unsteady problem....||ghlee||Main CFD Forum||6||October 2, 1998 05:36|