|
[Sponsors] |
September 25, 2009, 02:26 |
patching problem unsteady solver
|
#1 |
New Member
Gerhard Selle
Join Date: Aug 2009
Posts: 6
Rep Power: 17 |
hello everybody
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 Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
On Setring Step Size in unsteady Solver of FLUENT | lzgwhy | FLUENT | 0 | August 19, 2009 23:44 |
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 06:36 |