[Thiago800]

Hello, I want to refine the mesh of a cube with edge length of 108mm. I am simulating a spray which sprays the fuel from the top to the bottom. I want to refine the mesh on the top where the fuel is injected to the cube. Further down and around the spray, the mesh should be coarser (green block). I want to divide the cube in 9 blocks, as you can see on the attached picture (and inject the fuel unlike on the picture, from the top to the bottom along y axis). The mesh in the middle block should be refined (red block).
I attached the paraview picture to show you from where the injection should begin.
Is it possible to do that by only adjusting simpleGrading or multiGrading? If so, how do I adjust it to achieve this division and refined mesh? I tried it many times, but I don't get it how I want to.

[sri_0548]

Hello Tiago,


Did you solve this problem?


I'm also trying to refine the mesh in local regions using blockMesh. My geometry is a simple 2D rectangle. Could you please help me to refine the mesh?

[Clap_7]

Originally Posted by sri_0548

Hello Tiago,


Did you solve this problem?


I'm also trying to refine the mesh in local regions using blockMesh. My geometry is a simple 2D rectangle. Could you please help me to refine the mesh?

There are different options, like adjusting your BlockMesh or using RefineMesh. To be able to help you, more information and a simple picture of your wanted grid would be helpful.