CFD Online Discussion Forums

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-   -   Surface integral on interior surface (http://www.cfd-online.com/Forums/openfoam-post-processing/61374-surface-integral-interior-surface.html)

irc March 12, 2008 11:08

I have a simulation of a free
 
I have a simulation of a free jet, and want to sample the mass flow in the jet at different axial stations, i.e. calculate a surface integral across surfaces imbedded in the domain. I know that I can use the sample utility to extract interpolated values on a grid of points and then do the maths, but this is inelegant. Has anyone done this in a smarter way (e.g. by mapping the results onto another grid)? Any thoughts gratefully received.

irc March 13, 2008 08:15

For those interested, I solved
 
For those interested, I solved it with the cuttingPlane tool (I have a structured, orthogonal mesh here so life is easy) - some good posts already on this subject.

torvic July 31, 2008 21:24

Hello Ian Cowan and all the co
 
Hello Ian Cowan and all the community

Hope you're doing great.

I want to compute the mass flow of a chemical specie in a reacting jet, at different heights.

I don't have clear how to use cuttingPlane although i read some threads in this respect (the one by Dragos M), could you help me please with some pointers on how to proceed ?

thanks

best http://www.cfd-online.com/OpenFOAM_D...part/happy.gif

V


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