CFD Online Logo CFD Online URL
Home > Forums > CFX

Butterfly simulation

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

LinkBack Thread Tools Display Modes
Old   September 17, 2008, 18:21
Default Butterfly simulation
Posts: n/a
I'd like to calculate torque for butterfly valve. There is only 3 data known: diameter of pipe, pressure before disc and i know that air is outletting to atmosphere. Is it possible to simulate in CFX? What kind boundary conditions have to set (opening or inlet and outlet)? And the last question: How can i calculate a torque on the shaft? Thank you for your advices. Regards.
  Reply With Quote

Old   September 18, 2008, 19:23
Default Re: Butterfly simulation
Glenn Horrocks
Posts: n/a

Possible - yes.

BCs - upstream probably an inlet with prescribed pressure. Downstream an outlet with zero pressure.

Torque - You can get that from CFX-Post or as a monitor point in the simulation.

Glenn Horrocks
  Reply With Quote

Old   September 19, 2008, 17:48
Default Re: Butterfly simulation
Posts: n/a
Where exactly should I set BCs into geometry? I put an inlet on entry and outlet at the end of pipe. And solver has crashed. Only openning BC works, but I'am not sure about correctness of this solution.
  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
Why my simulation not agree with the wind tunnel experiment zhaowei CFX 4 July 11, 2015 03:36
Solar Radiation in OpenFOAM plainstyle OpenFOAM Running, Solving & CFD 15 July 8, 2014 04:43
Axial fan simulation in UG/NX 7.5 fan123 Main CFD Forum 2 April 23, 2011 08:22
Simulation of a complex wing in solidworks flow simulation niels1900 FloEFD, FloWorks & FloTHERM 6 April 20, 2011 10:44
strange simulation error Ralf Schmidt FLUENT 2 May 4, 2007 13:02

All times are GMT -4. The time now is 21:48.