# Velocity Profile

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

 November 26, 2004, 04:41 Velocity Profile #1 Moh Guest   Posts: n/a Sponsored Links I am trying to get a velocity profile at a inlet of a 3D cylinder. I wrote a velocity profile and I also tried piecewise-linear profile option in the inlet-vent. But I am not getting the solution I want it. Can somebody help me with this problem? Thanks. Moh

 November 26, 2004, 06:57 Re: Velocity Profile #2 anni Guest   Posts: n/a What do you mean? What do you expect?

 November 26, 2004, 19:54 Re: Velocity Profile #3 Moh Guest   Posts: n/a Im trying to input a parabolic shaped velocity profile into an inlet. I was hoping that from the XY plot i can get a velocity profile for the inlet. But im not getting the parabolic velocity inlet graph. Maybe its the procedure of inputting the profile or somthing else im doing wrong. Help me with this... Thanks

 November 27, 2004, 03:49 Re: Velocity Profile #4 anni Guest   Posts: n/a If you know the x,y velocity components for the x,y coordinates of your inlet, then Define-> Pofiles -> Write choose what you are interested in , and then check the results in a (.dat) file. If you then put the right values(u,v) for the x,y coordinates of your boundary, you have to get the profile right. Take in to account that x,y components of the face (inlet) are taken of the front cell.

 November 27, 2004, 06:22 Re: Velocity Profile #5 Moh Guest   Posts: n/a It worked (gave a good velocity profile according to my specifications), but its not showing/covering the whole inlet of the cylinder in 3D. It seems like its only taking into account one axis. e.g, if my inlet lies on XZ-plane, and inputing the velocity into y-axis. Then the profile should come out covering the whole XZ-plane in all dimensions, but infact, its like a 2D shaped lies on XZ-plane. Thanks for your help.

 November 28, 2004, 06:56 Re: Velocity Profile #6 abdellah Guest   Posts: n/a To use velocity profile in 3D, you must take into account that: X[0]is x coordinate X[1]is y coordinate X[2]is z coordinate

 Thread Tools Display Modes Linear Mode

 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 OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post cfdworker Fluent UDF and Scheme Programming 25 July 13, 2017 03:44 cfdworker Fluent UDF and Scheme Programming 0 April 23, 2009 19:09 cfdworker FLUENT 2 April 17, 2009 23:36 Alan Main CFD Forum 10 October 28, 2005 12:14 Abhi Main CFD Forum 12 July 8, 2002 09:11