CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Porous- jump flow velocity profile

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

LinkBack Thread Tools Display Modes
Old   June 16, 2015, 09:31
Red face Porous- jump flow velocity profile
New Member
Join Date: Oct 2014
Posts: 12
Rep Power: 4
sachinip is on a distinguished road

I am trying to simulate the flow inside a holder (it is a divergent nozzle, a cylinder where the filter is located and a convergent nozzle) where there is a filter (high pressure drop filter). However the results that i take are pretty strange.

I expected to have a u shaped velocity profile. However, the velocity in the middle decreases and it is higher in the wall. it seems that the flow in the middle (where the velocity is higher before the filter ) when it sees the filter turns arround and to the wall creating some vortexes.

The flow is in the begining turbulent (5000 Reynolds). I use a massflow inlet (as i know the massflow) , outflow outlet and pressure jump for the filter as boundary conditions. I use the k-e realizable model.

Do anybody else experience the same velocity profile? thank you very much!!!!!!!!!!! )))

I am waiting for your fruitful suggestion
sachinip is offline   Reply With Quote


Thread Tools
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 On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
3D UDF Paraboilc Velocity Profile (Can't Maintain) Sing FLUENT 12 August 7, 2017 06:25
Issues on the simulation of high-speed compressible flow within turbomachinery dowlee OpenFOAM Running, Solving & CFD 8 October 25, 2016 19:48
How to apply an outlet velocity profile to another inlet? siw FLUENT 4 April 10, 2013 11:19
Problem with time average tangential velocity in swirl flow. lakhi FLUENT 5 July 18, 2012 16:28
Velocity profile disturbance due to loss coefficient rks171 Main CFD Forum 3 May 25, 2012 17:30

All times are GMT -4. The time now is 15:04.