Simulating solid particles in fluid using VOF method

moh.sob · October 15, 2017, 17:53

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?

piu58 · October 16, 2017, 01:20

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.

nourlil · October 16, 2017, 03:28

Hello,

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

October 15, 2017, 17:53	Simulating solid particles in fluid using VOF method	#1
moh.sob New Member Mohammad Sobhani Join Date: Sep 2012 Location: Iran, Tehran Posts: 8 Rep Power: 14	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?

October 16, 2017, 01:20		#2
piu58 Senior Member Uwe Pilz Join Date: Feb 2017 Location: Leipzig, Germany Posts: 744 Rep Power: 15	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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October 16, 2017, 03:28		#3
nourlil New Member France - Alsace Join Date: Oct 2017 Posts: 13 Rep Power: 9	Hello, 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