|
[Sponsors] |
June 15, 2017, 18:59 |
rhoCentralFoam quitting after 1 second
|
#1 |
New Member
Cody Knoblock
Join Date: Jun 2017
Posts: 1
Rep Power: 0 |
So I am doing a mach tube problem and I have to have pressure, Temperature, and Velocity all initialized non-uniformly so that there are two initial quantities for those properties before and the after the shock in the middle of the tube. However the rhoCentralFoam solver quits out at an execution time of about 1~2 seconds doing maybe 20 timesteps in total.
The odd thing is too is that rhoCentralFoam solves the solution completely when U is uniform which I figured out through testing. Has anyone run into this before or know what's up? I am using a vanLeer discretization scheme (vanLeerV for Velocity) with a CTL number of 0.1, time step of 0.000001 and a max time of 0.002 if that helps! |
|
June 22, 2017, 07:07 |
|
#2 |
Member
ano
Join Date: Jan 2017
Location: Delft
Posts: 58
Rep Power: 10 |
Hello Cody,
what error does OF give you? A floating point exception? In which equation solver did it appear? What are your boundary conditions especially at the inlet? I also had some problems and now avoid them by switching from a supersonic to a transsonic or sometimes even incompressible inlet boundary condition. It is unphysical and not a solution in the long run, but for my cases I obtain reasonable results. I guess you probably already looked at the setup on this homepage: https://curiosityfluids.com/2016/07/...hocentralfoam/ |
|
Tags |
openfoam, rhocentralfoam, simulation stopping, vanleer, velocity |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Energy equation in rhoCentralFoam (revisited) | usv001 | OpenFOAM Programming & Development | 4 | September 6, 2024 08:51 |
How to apply a turbulence model to the rhoCentralFoam solver? | arussell92 | OpenFOAM Pre-Processing | 18 | July 25, 2022 05:26 |
Modify rhoCentralFoam: other equations of state | fivos | OpenFOAM Programming & Development | 5 | July 29, 2020 14:17 |
dynamic mesh refinement and rhoCentralFoam | ChrisA | OpenFOAM Running, Solving & CFD | 1 | March 21, 2013 09:00 |
rhoCentralFoam solver with Slip BCs fails in Parallel Only | JLight | OpenFOAM Running, Solving & CFD | 2 | October 11, 2012 22:08 |