# Source within a porous domain

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

 June 29, 2010, 04:25 Source within a porous domain #1 New Member   Philipp Join Date: Apr 2010 Posts: 27 Rep Power: 9 Sponsored Links Hi everyone! I would like to define an energy source term within a porous domain by reading in a csv file (x,y,z, source term [W m^-3], similar to the definition of a boundary condition by reading in a boundary profile file. Does anyone know if this is possible and how I can do that? Many thanks! Philipp

 June 29, 2010, 06:25 #2 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 13,732 Rep Power: 106 Use a 3D CEL interpolation function. When you set it up in CFX-Pre it will probably be easier to use the text editor to enter the points directly from the csv file - but you will have to do a small amount of formatting, but it is not hard.

 July 1, 2010, 09:18 #3 New Member   Philipp Join Date: Apr 2010 Posts: 27 Rep Power: 9 Hi Glen, thank you again for your help! I have still a small problem; I managed to create the User Function (H2 Source), I've imported the data points (coordinate, value) by reading in a csv. file. I have now a list of data points (about 3400, coordinates x,y,z and the corresponding value). I tried to define an equation source [kg m^-3 s^-1] in a subdomain, but I don't know exactly what name I have to put in the field. Is it just the name of the user function (H2 Source) or is it something like H2 Source.Variable name(x,y,z)? Regards, Philipp

 July 1, 2010, 18:42 #4 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 13,732 Rep Power: 106 If you used a 3D interpolation function it is simply f(a,b,c), where a,b and c are the input variables - almost always x,y and z. So in your case it would be "H2 Source(x,y,z)".

 July 2, 2010, 03:01 #5 New Member   Philipp Join Date: Apr 2010 Posts: 27 Rep Power: 9 Thank you very much Glen, perfect! Regards, Philipp

 Tags csv, source

 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 mksca OpenFOAM Programming & Development 13 August 18, 2014 22:26 gschaider OpenFOAM Installation 120 December 2, 2009 11:23 Tiago CFX 3 October 19, 2008 01:20 Greg Perkins FLUENT 8 October 20, 2000 12:40 Greg Perkins FLUENT 0 October 13, 2000 23:03