CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > CFX

Pulsating Pressure Inlet

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

Reply
 
LinkBack Thread Tools Display Modes
Old   June 26, 2008, 00:15
Default Pulsating Pressure Inlet
  #1
Chirag
Guest
 
Posts: n/a
Hi all, I am new in CFX. I want to give pulsating pressure at inlet of one component. Can any one tell me how can I give inlet boundary condition as pulsating pressure.

Like you can say pressure should vary with respect to time this is my condition for inlet.

There are 24 tutorials in help files which tutorial is useful for this. and if you have any other tutorial help file than kindly send it to me ASAP

Reply ASAP.

Thanks, Chirag Shah
  Reply With Quote

Old   June 26, 2008, 09:40
Default Re: Pulsating Pressure Inlet
  #2
MAB
Guest
 
Posts: n/a
time dependent boundary conditions can be implied using Step Function of CCL. e.g velocity*step((2-t)/1[s]) means the given velocity 'll be activated only during first 2 seconds . I would assume you can define pressure in similar manner. MAB
  Reply With Quote

Old   June 26, 2008, 16:37
Default Re: Pulsating Pressure Inlet
  #3
Ahmed
Guest
 
Posts: n/a
Hi Chirag

Do you have an expression or text file that you want to use for your case. If you do then its really easy. You can write an expression in cfx-pre and use that as your boundary condition or use 1D interpolation function which is even easier. Read through documentation how to set up 1D interpolation or search through forum. I am sure it has been explained here.

By the way what are you modelling?

  Reply With Quote

Reply

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
"Pressure Inlet" Boundary Setup Wijaya FLUENT 13 April 11, 2013 08:50
Pressure BC for combustion chamber Giuki FLUENT 1 July 19, 2011 11:35
Question about pressure inlet boundary condition. Alina FLUENT 1 November 30, 2007 08:39
Neumann pressure BC and velocity field Antech Main CFD Forum 0 April 25, 2006 02:15
Reversed flow in pressure inlet eric FLUENT 3 January 26, 2004 21:04


All times are GMT -4. The time now is 00:21.