CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Error in calculating non dimensional pressure gradient

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

LinkBack Thread Tools Display Modes
Old   March 23, 2011, 03:50
Exclamation Error in calculating non dimensional pressure gradient
New Member
Join Date: Mar 2011
Posts: 2
Rep Power: 0
MANISHBHATIA is on a distinguished road
I HAVE DONE SIMULATION OF FLOW AROUND PERIODIC ARRAY OF CYLINDER DIA: 0.00015 m. then i calculated pressure drop using difference in area weighted pressure at inlet cross section and mid point cross section and multiply it by 2. that total pressure drop used for calculating non dimensional pressure gradient.

but values are correct only at Re near 20- 30. its value are wrong at both low and higher Re. for ex at re =5 correct value is 14 but i m getting 1.8.

and same problem is happening for porosity 0.8, 0.9, 0.92.
kindly help
MANISHBHATIA 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
Pulsatile pressure inlet with pressure outlet a.lynchy FLUENT 3 March 23, 2012 14:45
Does star cd takes reference pressure? monica CD-adapco 1 April 19, 2007 11:26
how to get pressure gradient chinayu CD-adapco 1 May 11, 2006 08:00
Neumann pressure BC and velocity field Antech Main CFD Forum 0 April 25, 2006 02:15
Which kind of pressure use calculating Drag? Fer Main CFD Forum 5 January 27, 2006 13:32

All times are GMT -4. The time now is 21:12.