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what is the effect of using a denser mesh?
Posted 2022年7月12日 GMT-4 22:44 Fluid & Heat, Computational Fluid Dynamics (CFD), Microfluidics 0 Replies
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I tried to re-do the H-channel example from COMSOL. reference: https://www.comsol.com/model/controlled-diffusion-separator-12641 everything went well. my computation produced the same/similar graphics to the given graphics from the reference. the reference used coarse mesh. I tried compute the volume flow rate in and volume flow rate out (both value suppose to be the same/similar). i tried to do a computation with a other type of mesh and compute the flowrate again. I got these table of value. I was actualy expecting used a denser mesh would give a better result. but, turns out from the table, denser mesh produce a higher error/differences between flow in and out. why the coarse mesh shows a better result?
https://drive.google.com/file/d/1YVvQ4lUdabL3z_N97Vlzop_l1lQmIWx-/view?usp=sharing
Hello Rafita Adhawiyah
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