urgent:solid body in a fluid domain

Mansureh · October 9, 2010, 11:24

Hi every body
I'm trying to simulate the flow field in a cylinder, containing some spherical solid bodies with a random arrangement . can anybody tell me what will be the true strategy for creating the geometry?

1. subtracting the volume of spheres from the volume of the cylinder that results to a mesh with high skewness

2. meshing entire of the cylinder , considering the spheres as solid domain and meshing them separately, i tried it , but after postprocessing, I saw the fluid passes through the inside of solid bodies whereas the fluid should pass over the spheres.

if none of them is the true, so what will be the true way for creating and meshing the geometry that result to a true flow field?

kind regards

jugal44j · October 10, 2010, 13:52

hey friend,

I think you should try multiblock grid around sphere surface. & U must substract sphere from cylinder. This will be helpful as per my opinion.

Mansureh · October 10, 2010, 16:57

hi
thanks for reply. but how can I create multiblock grid around the spheres?

kind regards

October 9, 2010, 11:24	urgent:solid body in a fluid domain	#1
Mansureh New Member Join Date: Jul 2010 Posts: 22 Rep Power: 16	Hi every body I'm trying to simulate the flow field in a cylinder, containing some spherical solid bodies with a random arrangement . can anybody tell me what will be the true strategy for creating the geometry? 1. subtracting the volume of spheres from the volume of the cylinder that results to a mesh with high skewness 2. meshing entire of the cylinder , considering the spheres as solid domain and meshing them separately, i tried it , but after postprocessing, I saw the fluid passes through the inside of solid bodies whereas the fluid should pass over the spheres. if none of them is the true, so what will be the true way for creating and meshing the geometry that result to a true flow field? kind regards

October 10, 2010, 13:52	Multi block	#2
jugal44j New Member Jugal Join Date: Aug 2010 Location: Gujarat Posts: 5 Rep Power: 16	hey friend, I think you should try multiblock grid around sphere surface. & U must substract sphere from cylinder. This will be helpful as per my opinion.

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October 10, 2010, 16:57		#3
Mansureh New Member Join Date: Jul 2010 Posts: 22 Rep Power: 16	hi thanks for reply. but how can I create multiblock grid around the spheres? kind regards