[zhou_buaa]

Since I am a beginner for Star-CCM+, I encountered one meshing problem. I have a heat exchanger structure here, which has some thin fins inside it. It belongs to the fluid-solid heat convection case, so there is the fluid zone inside the heat exchanger.

I just set one mesh type for all the zones. The base size of the mesh is 8mm, and the prism thickness is 30%, 2 layers. Surface size is 25%-100%. When generating the volume mesh, here shows "can't recover edge near position: (-2.17425e-03, -1.83500e-01, -1.88403e-02)" and some other similar messages. I thought it was the mesh problems, but I did not know how to deal with. I tried to set different mesh types on different regions, but there were problems when examining the surface mesh.

I really hope some experts would help me with this. Thank you very much!