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

Modeling sudden flow in Vacuum chamber

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   February 8, 2008, 16:04
Default Modeling sudden flow in Vacuum chamber
  #1
Sandilya Garimella
Guest
 
Posts: n/a
I am interested in modeling the following scenario. Can anyone give me insight into how to model it?

There is a vacuum chamber which is being pumped down by a pump. There is an inlet to the chamber to send in gas phase chemicals. The inlet is operated by a valve which opens for 20 milliseconds to sample in air.

During sampling, the pressure of chamber rises due to exposure to atmospheric pressure and after closing of the valve, the pressure falls back

I am interested in modeling this cycle.

I want to know, how to model the pump boundary condition in fluent and maintain a low pressure in the flow domain

Also after the initial sampling time, the valve opening BC should represent a wall through the rest of the cycle.

Can anyone tell me a general idea how to possibly acheive thsi?

Thank you

  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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Modeling a vacuum chamber in Icepak L093N FLUENT 2 December 25, 2013 09:39
Multiphase flow modeling: CFX or FLUENT? Paul Main CFD Forum 8 January 24, 2012 10:25
A role of combustion modeling in flow solver? Yoon Main CFD Forum 0 November 26, 2006 13:00
supersonic flow in extrem vacuum Ali Khan FLUENT 4 July 28, 2004 15:01
Flow and Heat transfer in a Thawing chamber B.Prabhu FLUENT 0 May 12, 2002 16:13


All times are GMT -4. The time now is 11:11.