 |
 |
 |
|
|
|
[Sponsors] | ||||
November 21, 2019, 08:09
|
|
#41 |
|
New Member
SAIKRISHNA N
Join Date: Jun 2014
Posts: 10
Rep Power: 12  |
Hi Foamers,
When I used turbulentInlet boundary condition for velocity at the inlet in pisoFoam solver (openfoam 6), I also got these pressure fluctuations in the domain. I was solving pipe flow with LES. SGS models tried are Smagorinsky, kEqn, dynamicKEqn and WALE. everytime, same problem. I did a study to see effect of time step. whenever I reduce the time step size by half, the amplitude of pressure oscillations were increasing by factor of 2. this ratio is maintained in various trials. I could not understand where the problem lies. I tried with different Reynolds numbers of flow. Same problems get repeated. Can someone please try to look into this? |
|
|
|
|
 |
| Tags |
| fluctuation, les, pisofoam, pressure |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Calculation of the Governing Equations | Mihail | CFX | 7 | September 7, 2014 07:27 |
| Pressure BC for combustion chamber | Giuki | FLUENT | 1 | July 19, 2011 12:35 |
| Fluctuating pressure field | vw.cfd | OpenFOAM | 1 | February 8, 2011 07:12 |
| Pressure enigma. | Sara | Main CFD Forum | 22 | July 30, 2009 05:46 |
| Hydrostatic pressure in 2-phase flow modeling (long) | DS & HB | Main CFD Forum | 0 | January 8, 2000 16:00 |
10Likes
Linear Mode
