# calculating shear rate

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

 August 21, 2012, 13:49 calculating shear rate #1 Senior Member   hamid Join Date: Nov 2010 Posts: 185 Rep Power: 8 Hi Haw can i calculate shear rate in cfd-post, or in fluent,? and what is the meaning of velocity u.gradient y ? thanks so much

 August 22, 2012, 05:08 #2 Senior Member   Join Date: Aug 2011 Posts: 315 Rep Power: 13 you can find it in fluent via contours ... -> derivatives ... -> strain rate velocity dot gradient y = velocity component in y-direction

 August 22, 2012, 05:31 #3 Senior Member   hamid Join Date: Nov 2010 Posts: 185 Rep Power: 8 thank you so much, yes it works, .. however I am wondering if still I can use "velocity u.gradient y" as "dUx/dy" in CFD-Post, if so, would you please let me know why the unit does not pop up in drop down menu in cfd-post for "velocity u.gradient y" Thank you again

 August 22, 2012, 21:56 #4 Senior Member   Join Date: Aug 2011 Posts: 315 Rep Power: 13 Sorry, I thought you were asking an mathematical expression $u\cdot\nabla y$ which results in the y-component of velocity. In CFD-Post, "velocity u.gradient y" is a CEL expression and represents "dUx/dy", as you have mentioned. You should click the ellipsis (..., indicating more variables) beside the drop-down list to get this variable.

 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 Dave442 Main CFD Forum 5 October 25, 2013 04:08 warlocklw Main CFD Forum 2 May 21, 2012 06:16 shib FLUENT 0 June 22, 2010 12:44 Joe CFX 3 March 17, 2007 10:42 liu OpenFOAM Running, Solving & CFD 6 December 30, 2005 18:27

All times are GMT -4. The time now is 21:26.