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How to calculate entrance length in comsol
Posted 3 sept. 2019, 16:28 UTC−4 Fluid & Heat, Computational Fluid Dynamics (CFD), Microfluidics 0 Replies
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hi
I have a microchannel with dimensions (1mm x 1mm x 5m), with water flowing in it. I need to find the hydrodynamic entrance length for a given velocity (or flow rate) in comsol. In theory, we have the formula for laminar flow, L=0.05ReDh but in comsol I don't know to do.
Hello shreeyansh96
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