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How to simulate a spherical drop in 2D model?
Posted 2021年10月11日 GMT-4 02:45 Computational Fluid Dynamics (CFD), Microfluidics, Equation-Based Modeling Version 5.6 1 Reply
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Hello,
I am working on simulating the dynamics of a water droplet in comsol.
I cannot use 3D models because they take enormously large computational time, and thus I am left with using 2D model or the 2D axissymmetric model. Axissymetric model was fine when I had to capture the statics of the drop but now to study the drop in motion, this wont be useful(the drop moving away from axis breaks the axis symmetry).
Now, when i use 2D symmetry, I am consious of the fact that I am using a cylinder not a drop and thus this is not a drop. Can anyone tell me a way so that i can circumvent this problem ? Or is there a way to give some function in z direction(for altering the symmetry) so that I can model a sphere ?
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If the drop moves and the shape changes, then there is no axis of symmetry. You have to consider a full-3D simulation.