CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

DSMC for turbomolecular vacuum pumps

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 20, 2011, 03:54
Default DSMC for turbomolecular vacuum pumps
  #1
Senior Member
 
Ivan Flaminio Cozza
Join Date: Mar 2009
Location: Torino, Piemonte, Italia
Posts: 209
Rep Power: 16
ivan_cozza is on a distinguished road
Send a message via MSN to ivan_cozza
Hi Foamers,
I'm currently interested in simulating some turbomolecular vacuum pump stages. Obviously, as the involved Kn are well below the continuum limit in the first stages, a N-S solution is not appropriate for these calculations. I wonder if dsmcFoam can simulate it. In particular the principal issues are related with the rotating mesh (I need to simulate at least one stator-rotor stage), and with the boundary conditions (I need to fix the pressure at the inlet or at the outlet of the stage).

Is dsmcFoam usable with moving meshes? And, are there some pressure b.c.?

In the paper "The effect of inlet guide vanes and sharp blades on the performance of a turbomolecular pump", JVST-A, 29, 011016 (2011), prof. Bird suggested an alternative method to treat the rotor part. He substituted the moving mesh with a moving reference frame for the particles positions and velocities. In your opinion, is this method implementable in dsmcFoam?

I know, there's a lot of stuff!

Thank for the help,
Ivan
ivan_cozza 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
openfoam DSMC tutorial information wangp1 OpenFOAM 7 July 23, 2020 14:52
DSMC: simulating flow into vacuum Brinx OpenFOAM 1 April 18, 2013 05:22
Assistance in Vacuum pump simulation enr_venkat CFX 5 November 20, 2012 12:50
DSMC simulation wangp1 Main CFD Forum 0 May 16, 2010 13:07
Radiation in vacuum nitin CFX 0 July 6, 2009 02:49


All times are GMT -4. The time now is 02:13.