# Velocity Profile

 User Name Remember Me Password
 Register Blogs Members List Search Today's Posts Mark Forums Read

 January 9, 2012, 07:57 Velocity Profile #1 New Member   Join Date: Jan 2012 Posts: 5 Rep Power: 7 Hi guys, If I am modelling a pipe with a constant inflow rate, how am I able to get the outlet velocity profile, down the center of the pipe. I assumed I could create a plane section in the middle but am unsure how to plot the outlet velocity. Also how is it possible to set the stopping criteria to when the velocity profile is constant? Should a Steady flow model be the best method to use. Any help would be much appreciated. The graph should look like the one below. Many thanks Amish

 January 10, 2012, 01:37 #2 Member     aerosapien Join Date: Sep 2010 Posts: 59 Rep Power: 9 create a section along the center of the pipe line, you get the vector and scalar plots!!!

 January 10, 2012, 04:48 #3 Senior Member   Ping Join Date: Mar 2009 Posts: 290 Rep Power: 12 to get a plot rather than a scene, create a section plane through the central axis, but use the outlet boundary as the input part, rather than the fluid region - this new derived part is then a line rather than a plane. then create a plot with this section 'line' as the input part, Y (0,1,0) as the x axis (the plot will be rotated of course), and some field function as the y axis - eg velocity magnitude. for a stopping criteria, you could probably do something with a new Field Variance Monitor using the line part as its part, then a report and monitor of this, then a stopping criteria on this monitor (and maybe others too).

 January 10, 2012, 06:10 #4 Member   Join Date: Feb 2011 Location: DE-PB Posts: 56 Rep Power: 8 Additionally to pings good advice you can also use an line probe as derived part for your XY-plot.

 January 18, 2012, 11:24 #5 New Member   Join Date: Jan 2012 Posts: 5 Rep Power: 7 Ping, Thank you very much for your help. I managed to get a plot witch looked somewhat correct. Like you said, it needs to be rotated, but that's a minor issue. Creating the plane section along the output, and plotting the graph, gives me a weird result. But using a line section as willimanili suggested gave better results. Thanks again guys

 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

All times are GMT -4. The time now is 19:14.

 Contact Us - CFD Online - Privacy Statement - Top