CFD Online Logo CFD Online URL
Home > Forums > General Forums > Main CFD Forum

Channel flow: Inlet pressure AND uniform velocity?

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Search this Thread Display Modes
Old   April 15, 2010, 10:32
Default Channel flow: Inlet pressure AND uniform velocity?
New Member
Join Date: Mar 2010
Posts: 1
Rep Power: 0
frmap1 is on a distinguished road
A fluid flows between 2 plate in 2 dimensions. This is a channel flow. The flow is driven by a given pressure at the inlet and a given pressure at the outlet. The default boundary condition available in Comsol (and Fluent too I think)is:
"fixed pressure" with "no viscous stress".

I would like to impose a "UNIFORM VELOCITY" (du/dy = 0) instead of a "no viscous stress", along with the given inlet pressure, so that a boundary layer develop as a consequence of the given pressure difference between the inlet and the outlet.

To summarize, I would like to know how to impose this new boundary condition, in comsol or FLuent:

INLET: "fixed pressure" with "UNIFORM VELOCITY (du/dy = 0)".

Keep me posted.

Last edited by frmap1; April 15, 2010 at 13:13.
frmap1 is offline   Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Problem with laminar 2d channel flow Quarkz Main CFD Forum 6 October 7, 2015 12:24
Problem with rhoSimpleFoam : exploding enthalpy and density at the walls david39 OpenFOAM Running, Solving & CFD 6 January 18, 2011 11:49
rhoSimpleFoam claco OpenFOAM 7 April 20, 2010 04:32
maintaining a logarithmic velocity distribution Morten Andersen CFX 1 January 8, 2007 11:37
flow simulation across a small fan jane luo Main CFD Forum 15 April 12, 2004 17:49

All times are GMT -4. The time now is 07:48.