# diffusion coefficient

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

 January 22, 2013, 07:56 diffusion coefficient #1 Member   bitak Join Date: Jul 2009 Posts: 56 Rep Power: 8 hello. how i can enter diffusion coefficient (m^2 s^-1) in cfx solver? thanks

 January 22, 2013, 08:29 #2 Senior Member   Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 486 Rep Power: 9 0.002 [m^2 * s^-1] or 0.002 [m^2 / s^1]

 January 22, 2013, 18:11 #3 Member   bitak Join Date: Jul 2009 Posts: 56 Rep Power: 8 there are same, no?

 January 24, 2013, 17:22 #4 Senior Member   Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 486 Rep Power: 9 yes, exactly the same, but you can do it either way.

 January 25, 2013, 01:27 #5 Member   bitak Join Date: Jul 2009 Posts: 56 Rep Power: 8 Thank you. but infact my question is : when in article talk about diffusion coefficient, for transfer particle in the tube and calculate concentration of oarticles on tube wall, how i can enter this coeffichent in solver cfx?

 January 25, 2013, 02:16 #6 Senior Member   Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 486 Rep Power: 9 You would model the scalar as an additional variable and in the domain you would enter the kinematic diffusivity of the scalar.

 January 25, 2013, 09:07 #7 Member   bitak Join Date: Jul 2009 Posts: 56 Rep Power: 8 really thank you.

 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 Niklas Wikstrom (Wikstrom) OpenFOAM Running, Solving & CFD 122 June 15, 2014 06:20 ronen FLUENT 0 April 11, 2011 13:02 benk OpenFOAM 1 March 25, 2010 22:41 vinz OpenFOAM Running, Solving & CFD 98 October 27, 2008 09:43 iceabc FLUENT 1 June 10, 2004 10:04

All times are GMT -4. The time now is 10:50.