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Simulating solid particles in fluid using VOF method

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Old   October 15, 2017, 16:53
Default Simulating solid particles in fluid using VOF method
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Mohammad Sobhani
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I want to simulate motion of solid particles in a newtonian fluid. Is it possible to define a fluid with high viscosity and high surface tension instead of solid particles and then solve the problem with VOF multiphase model?
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Old   October 16, 2017, 00:20
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Uwe Pilz
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This approach is possible but has limitations: Fluid "particles" of this properties get always round. You cannot simulate any effects which depend on the shape of the particles.
Uwe Pilz
Die der Hauptbewegung überlagerte Schwankungsbewegung ist in ihren Einzelheiten so hoffnungslos kompliziert, daß ihre theoretische Berechnung aussichtslos erscheint. (Hermann Schlichting, 1950)
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Old   October 16, 2017, 02:28
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You have to use FSI (Fluid-solid interaction) to solve phenomena so you have te define degrees of freedom to particles but overset mesh is needed in this case of simulation
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solid particles, vof multiphase

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