CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

Pressure drop using Superficial velocity and interstitial velocity

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 8, 2015, 23:25
Default Pressure drop using Superficial velocity and interstitial velocity
  #1
Senior Member
 
Tanjina Afrin
Join Date: May 2013
Location: South Carolina
Posts: 169
Rep Power: 9
Tanjina is on a distinguished road
Hello everyone,

IN Fluent manual, it is written that "Note that the inlet mass flow is also calculated from the superficial velocity. Therefore, for the same mass flow rate at the inlet and the same resistance coefficients, for either the physical or superficial velocity formulation you should obtain the same pressure drop across the porous media zone."

And it is written also that if we want more accurate result in velocity, we should use interstitial (physical) velocity.

Why should we get same pressure drop using any of the velocity? And if we get the same result, what is the improvement using interstitial velocity?

Thanks in advance.

Regards,
Tanjina

Last edited by Tanjina; November 8, 2015 at 23:33. Reason: adding sentence
Tanjina is offline   Reply With Quote

Reply

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



All times are GMT -4. The time now is 08:47.