Hi,

How do I mesh a solid volume inside a fluid volume so that the meshing on the solid-fluid interface is the same?

E.g. a large fluid volume (1 x 1 x 1) enclosing a smaller solid volume (0.25 x 0.25 x 0.25 placed in fluid centre). The solid volume would have a mesh spacing of 0.01 while the fluid volume would be 0.1.

In Gambit how do I construct the mesh relations where the fluid mesh is gradually becoming smaller (= solid mesh at solid surface)? Do I need to link the surfaces from the solid with the surfaces from the fluid at the interface? Or is there a simpler way of doing it?

Regards, PAD

Creat the two volumes as written, split them. Copy 2 opposite outside surfaces of the fluid volume to the interface solid fluid. Split the fluid volume with the faces.You have 4 Volumes now ( 1 solid + 3 liquid ). Mesh the solid volume with map 0.01. Take one of the faces inside the fluid and mesh it with pave 0.1. After that you can cooper one fluid-volume after the other. ..... this is a fast solution but if you want to know more about your fluid flow it´s not the best one. hope that helps Gernot