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Best way to find the average velocity over a cross section of an axisymmetric flow

Posted 12 dic 2013, 11:00 GMT-5 Computational Fluid Dynamics (CFD), Studies & Solvers Version 4.3b 1 Reply

Timothy Riley
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I'm attempting to find the average velocity over a cross section (of an 2d axisymmetric flow profile) vs distance along the flow channel (say z direction) in COMSOL. The only way I can find to do this is to create cut lines at intervals then create a 1-d plot with the data and export this to a spreadsheet for further processing. Is there a better way? I was trying to calculate an average using the cut-lines but what ends up happening is that COMSOL takes all of the velocities in the cut lines and averages them, so I end up getting the average velocity in the channel.

Thanks in advance for any advice!
1 Reply Last Post 12 dic 2013, 12:16 GMT-5
Jeff Hiller COMSOL Employee

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Posted: 1 decade ago 12 dic 2013, 12:16 GMT-5
I think what you're after is what we call model couplings of the projection type. See Reference Manual, version 4.3b, page 283-304 (especially page 288).
Best,
Jeff
I think what you're after is what we call model couplings of the projection type. See Reference Manual, version 4.3b, page 283-304 (especially page 288). Best, Jeff

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