|October 2, 2007, 13:05||
Basic Poiseuille flow simulation question
My question is very basic. I am running a simulation for Poiseuille flow in a pipe (Laminar; incompressible flow) using ADINA. I model the pipe in 3D. Pipe is long enough (Dia 4mm and lenght 60mm).
For BC : at one end I give constant velocity (inlet) and at the other 0.0 pressure. The velocity distribution becomes parabolic as it should be. But the value of peak velocity is not what I expected from Poiseuille's flow V(r)=Vmax(R^2-r^2). Same about pressure drop.
Likewise if I just give Pressure BCs at both ends, velocity distribution is parabolic but not what poisullie's eqn predicts for Vmax?
I am not familiar with computational aspects of CFD but I think I am missing something very basic. I have varried mesh size etc.?
|Thread||Thread Starter||Forum||Replies||Last Post|
|Domain format problem on airfoil flow simulation||andrenonaka||CFX||14||December 7, 2015 01:42|
|What is the Difference between Re=0 and Re=0.01 in Simulation of Viscoelastic Flow||andreachan||Main CFD Forum||6||November 28, 2012 17:04|
|Simulation of a complex wing in solidworks flow simulation||niels1900||FloEFD, FloWorks & FloTHERM||6||April 20, 2011 10:44|
|Free surface flow simulation question||Jane Luo||FLUENT||1||April 23, 2004 04:26|
|Question concerning about the flow simulation of a fan in an engine room.||ghlee||Main CFD Forum||3||October 21, 1998 07:05|