ESyS-Particle

Particles falling from mesh

Asked by Toketo

Hello guys!
The form of my mesh is a horizontal plane next to an inclined plane. A box of particles is made with infinite walls except one side so that it will fall and run next to the incline:

So I have this:

sim.readMesh(
   fileName = "try11.msh",
   meshName = "floor_mesh_wall"
)

I also have other walls, and I created an infinite bottom wall at the bottom of the incline.

The problem:
I made sure that my mesh (horizontal plane above the incline) would match the points in my generated box of particles (min and max in the BoundingBox) yet particles would still fall from the mesh.

Some would fall next to the incline and you could really see the incline there. Some would fall on the plane above the incline (which shouldn't happen).

The characteristic length in my mesh is 1.0

How can I fix this?

Question information

Language:
English Edit question
Status:
Solved
For:
ESyS-Particle Edit question
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Solved by:
Dion Weatherley
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Best Dion Weatherley (d-weatherley) said : 		#1

Hi Toketo,

When strange things happen using mesh walls, often the problem is because the ordering of triangle nodes is incorrect. As I mentioned in a previous answer, the ordering of nodes in the mesh file determines the active face of triangles. Incorrectly oriented triangles will allow particles to fall through the mesh. The ESyS-Particle Tutorial explains this.

Cheers,

Dion.

Revision history for this message
Toketo (tomcarlosimborio) said : 		#2

Thanks Dion Weatherley, that solved my question.