CFD Online Logo CFD Online URL
Home > Forums > CFX

Transient Simulation in ANSYS CFX

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

LinkBack Thread Tools Display Modes
Old   December 2, 2009, 20:10
Default Transient Simulation in ANSYS CFX
New Member
Join Date: Dec 2009
Posts: 10
Rep Power: 6
ylm054 is on a distinguished road
I am running a transient simulation where the boundary condition is a pressure that oscillates with a cosine function (Womersley flow).

At the moment, I enter boundary conditions as columns (1st column time, 2nd column static pressure) in a data file and import it into a user function.

I then call the user function from the prompt box under B.C>Static value etc.

Is there a more elegant method of doing this? In the current method, will ANSYS interpolate between BC pressure values at each time step, or not?

Thank you

Last edited by ylm054; December 2, 2009 at 20:11. Reason: no tags
ylm054 is offline   Reply With Quote

Old   December 4, 2009, 04:32
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 8,768
Rep Power: 71
ghorrocks has a spectacular aura aboutghorrocks has a spectacular aura aboutghorrocks has a spectacular aura about
You can use a CEl expression. Something like:

Pressure = 100 [Pa] * cos(t/1[s])
ghorrocks 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
2D Simulations in ANSYS CFX CFDLife CFX 10 August 1, 2008 14:04
transient simulation Tad CFX 1 November 30, 2003 16:25
Transient Rotor/Stator Simulation in TASCFLOW Deepak Ganga CFX 3 June 27, 2003 02:47
ANSYS to acquire CFX Fred FLUENT 0 February 18, 2003 21:04
ANSYS to acquire CFX Fred CD-adapco 0 February 18, 2003 21:03

All times are GMT -4. The time now is 01:35.