Simulating solid particles in fluid using VOF method

moh.sob · October 15, 2017, 16:53

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, 00:20

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, 02:28

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, 16:53	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: 13	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, 00:20		#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)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
chtMultiRegionFoam connection between solid and fluid region of heat exchanger	ahab	OpenFOAM	1	December 18, 2019 00:37
Simulating discrete solid phase inside a continuous fluid phase	hosseinamir71	CONVERGE	1	August 31, 2017 16:02
[ANSYS Meshing] Combine solid mesh generated in workbench mesh and fluid mesh in fluent meshing ?	RPjack	ANSYS Meshing & Geometry	2	August 27, 2015 09:33
Wrong flow in ratating domain problem	Sanyo	CFX	17	August 15, 2015 06:20
heat conducting solid within a fluid medium?	sieginc.	STAR-CCM+	1	February 19, 2012 11:48

October 16, 2017, 02:28		#3
nourlil New Member France - Alsace Join Date: Oct 2017 Posts: 13 Rep Power: 8	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