|
[Sponsors] |
May 29, 2007, 05:54 |
Fluent Help: to whom can I ask?
|
#1 |
Guest
Posts: n/a
|
I am working at uni with the new fluent. I wanted to try one extreme thing, a multiphase eulerian simulation, with a compressible phase (air). The simulation is unsteady, and at start is SUPER, I have what i wished for velocity, pressure, phase and turbulence. But then, in one place where the mesh is really simple and noting should happen, happens the tragedy, and the simulation diverged. I donīt know why, can be that the euler is stil not adapted for a compressible flow. Still, i think that that is the only solution, und that the simulation at the start is marvellous. Does anyone knows if is it possible to contact some people from Ansys? ANd, has anyone an idea for this strange behaviour? Every help would be appreciated. I can also explain why i think that the euler + compressible is the only solution for me.
|
|
May 29, 2007, 13:25 |
Re: Fluent Help: to whom can I ask?
|
#2 |
Guest
Posts: n/a
|
I have the same problem. Iread something about it in the faq question: "I would do it that way:
1. solve the flow for incompressible medium, without energy equation. Set the density close to the density, that you expect at the present pressure and temperature. The solution for the flow dosn't has to be completely convergent, but the residuals should be on the way down. 2. Apply energy equation and compressibility of the gas and set the present pressure with operating condition option. You might do some iteration steps as well. Sometimes they are not necessary 3. Apply the thermal BC " Can anyone explain what does it mean set the present pressure with operating option, very simple, as I were 5 years? And what does it mean with "Apply the thermal bc?" |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Stopping a Fluent batch job AND saving the data! Possible? | Volker Pawlik | FLUENT | 13 | December 28, 2020 04:16 |
A Problem of Fluent Interpreted UDF: parse error | knight | Fluent UDF and Scheme Programming | 25 | August 16, 2018 10:26 |
Two questions on Fluent UDF | Steven | Fluent UDF and Scheme Programming | 7 | March 23, 2018 03:22 |
Compared MRFSimpleFoam and Fluent in a centrifugal pump! | renyun0511 | OpenFOAM Running, Solving & CFD | 8 | July 6, 2010 06:24 |
Problems in lauching FLUENT | Lourival | FLUENT | 3 | January 16, 2008 16:48 |