Rising Bubble
Visualization of surface (triangles) and background (tetrahedrons)
meshes for two-phase flows simulation of an air bubble in a water-sugar
solution using an 3D Finite Element Arbitrary Lagrangian Eulerian code.
As can be seen, the background mesh is more refined below the air
bubble, where fluid recirculation is stronger, and the surface mesh
presents a constant edge lengh along its shape.