|
[Sponsors] |
April 2, 2014, 08:26 |
Simple gas flow through pipe
|
#1 |
New Member
anonymous
Join Date: Apr 2014
Posts: 8
Rep Power: 12 |
Hi CFD-Community!
I'm very new to cfd simulations, especially I just started with openFoam. I'm kinda stuck on probably the most basic examples using icoFoam, maybe someone can spot my stupid mistake Minimal test case: A simple small rectangular capillary - internal pressure 0.1Pa - with a pressure inlet on one side. It is assumed that there is an infinite volume with with a fixed pressure of 1000Pa connected to the inlet so we can assume there will be a constant flow into the capillary (for simplicity I assume the pressure is equal to the kinematic pressure). The simulation is running without errors but when I view the data in paraFoam I would assume that after some time the pressure within the capillary should reach 1000Pa. This is however not the case, the pressure is somewhere in the magnitude of 1xE-16. My p file: Code:
dimensions [0 2 -2 0 0 0 0]; internalField uniform 0.1; boundaryField { Inlet { type fixedValue; value uniform 1000; } Walls { type zeroGradient; } Code:
dimensions [0 1 -1 0 0 0 0]; internalField uniform (0 0 0); boundaryField { Inlet { type pressureInletVelocity ; value uniform (0 0 0); } Walls { type zeroGradient; } Code:
Inlet { type wall; [...] } |
|
April 4, 2014, 10:20 |
|
#2 |
New Member
anonymous
Join Date: Apr 2014
Posts: 8
Rep Power: 12 |
so I think I solved my problem. In the end it was a problem with the mesh, can't really tell what it was but using netgen and converting it instead of using blockMesh solved everything
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
High speed compressible flow through pipe | Munni | Main CFD Forum | 6 | December 7, 2015 11:33 |
Constant velocity of the material | Sas | CFX | 15 | July 13, 2010 08:56 |
About Turbulence Intensity (Pipe flow assimilated) | gRomK13 | Main CFD Forum | 1 | July 10, 2009 03:11 |
What is the difference between liquid reactive flow and gas reactive flow? | James | Main CFD Forum | 6 | May 15, 2009 12:14 |
gas solid flow in a pipe | Pandu | CFX | 0 | July 30, 2001 16:53 |