CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > CFX

Periodic flow

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

LinkBack Thread Tools Display Modes
Old   February 26, 2008, 04:15
Default Periodic flow
Posts: n/a
Hi, I have an unsteady flow. At the inlet , velcoity U=0.2+0.3*sin(100*t) At outlet : opening type

At some times my inlet would be outlet. How should I choose Boundary condition in this case?

Thanks, ---Selim
  Reply With Quote

Old   February 26, 2008, 06:00
Default Re: Periodic flow
Glenn Horrocks
Posts: n/a

If you mean that sometimes the flow goes into the domain and sometimes it goes out - that is fine, an inlet with a prescribed velocity should work here.

Glenn Horrocks
  Reply With Quote

Old   February 26, 2008, 08:48
Default Re: Periodic flow
Posts: n/a
you can execute it by using inlet boundary, because the 'inlet boundary' does not only means that the fluid flow into the calculating region.
  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
mass flow in is not equal to mass flow out saii CFX 12 Yesterday 06:21
periodic compressible flow vivian Main CFD Forum 2 April 25, 2006 05:04
Periodic boundary condition & Unsteady flow Somchai FLUENT 2 March 28, 2006 08:51
specifying the flow direction in periodic boundary joanna FLUENT 2 February 27, 2006 22:09
Can 'shock waves' occur in viscous fluid flows? diaw Main CFD Forum 104 February 16, 2006 06:44

All times are GMT -4. The time now is 06:02.