setting a body force as a boundary condition

April 4, 2003, 15:28

Dear all, I would like to specify a body force as a boundary condition (the thrust generated by a propeller). I could not find anything in the help files that made sense to me. I am using CFX 5.5.1, and the problem seems like one that would have been tackled in the past. I would very much appreciate any help on the matter. Thank you for your time, blair

April 5, 2003, 16:36

Hi Blair,

A body force is not a boundary condition, it is a source term. To create a momentum source term you must first define a sub-domain over which to apply it. There is an excellent tech-tip dealing with this on the CFX community site. You can also find some examples in the doc.

Robin

April 4, 2003, 15:28	setting a body force as a boundary condition	#1
blair Guest Posts: n/a	Dear all, I would like to specify a body force as a boundary condition (the thrust generated by a propeller). I could not find anything in the help files that made sense to me. I am using CFX 5.5.1, and the problem seems like one that would have been tackled in the past. I would very much appreciate any help on the matter. Thank you for your time, blair

April 5, 2003, 16:36	Re: setting a body force as a boundary condition	#2
Robin Guest Posts: n/a	Hi Blair, A body force is not a boundary condition, it is a source term. To create a momentum source term you must first define a sub-domain over which to apply it. There is an excellent tech-tip dealing with this on the CFX community site. You can also find some examples in the doc. Robin

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