CFD Online Logo CFD Online URL
Home > Forums > General Forums > Main CFD Forum

Vacuum pump simulation

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

LinkBack Thread Tools Display Modes
Old   February 5, 2008, 01:57
Default Vacuum pump simulation
Posts: n/a

I have limited knowledge of CFD, so sorry if the following is a "dumb" question.

I am trying to help a company identify potential applications for CFD in their design and development activities. They have recently moved into vacuum pumps (the rotary vane, positive displacement variety, see: and want to know if a CFD package will be able to model this accurately.

It is the transient behaviour after first starting the pump which is of interest - i.e. what is the vaccum generated after 5, 10, 20 seconds and so on. This differs from the static (e.g. valve) or steady-state (e.g. centrifugal impeller) analyses I have seen before in CFD.

Is this type of analysis possible in CFD, and is it do-able on one of the CAD-integrated low-end packages (specifically EFD.Pro, STAR-ProE or CFDesign) which we are considering?

Any help/advice much appreciated.



  Reply With Quote

Old   February 6, 2008, 12:28
Default Re: Vacuum pump simulation
Jonas Holdeman
Posts: n/a
Just a thought... CFD packages are based on the governing equation(s) for continuum fluids, i.e. the Navier-Stokes equation, which is thought to be applicable down to the near the molecular level. If you are talking about high vacuum, then the discrete properties (like the mean free path of the molecules relative to the dimensions of the container) dominate and CFD is not applicable. However, it may be applicable in the design of a roughing pump.
  Reply With Quote

Old   February 6, 2008, 17:22
Default Re: Vacuum pump simulation
Joern Beilke
Posts: n/a
You can simulate a rotary vane pump using StarCD. I did it some years ago and it is quite some fun to define the mesh movement;-)

  Reply With Quote

Old   March 3, 2011, 01:00
New Member
Join Date: Apr 2010
Posts: 10
Rep Power: 9
Rana is on a distinguished road
i am looking for simulating a rotary vane vacuum pump, finding it hard to locate a paper on it, if anyone have some literature on the same please post a link
Rana 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
Simulating a Vacuum Pump malfonso1286 STAR-CCM+ 2 October 19, 2016 10:35
Centrifugal Pump Simulation Problem! warex FloEFD, FloWorks & FloTHERM 29 September 23, 2014 10:27
Assistance in Vacuum pump simulation enr_venkat CFX 5 November 20, 2012 12:50
Resume Transient simulation HMR CFX 1 June 28, 2011 21:13
turbo molecular pump simulation atif Main CFD Forum 2 April 11, 2011 03:36

All times are GMT -4. The time now is 00:10.