I am really confused by sliding mesh. Does the velocity of sliding mesh mean the velocity of each fluid element in that mesh? In another word, if one part of mesh is sliding at velocity V, is the fluid in that mesh also moving at velocity V? Could it be used for steady flow or only for unsteady flow?

The velocity u r specifying is the velocity of the object which is moving ( either translational or rotational). That does not mean the velocity of the mesh or the fluid particles. Sliding mesh is used only for Time dependent Solutions where Mesh generation at each time step is required.

BFN

Mahesh

[sheikh nasir]

hello,
i have the problem in sliding mesh , i was giving velocity to fluid or train or both . but nothing working perfectly. can any body tell me how to work on sliding mesh. i am working on train moving in tunnel. my email is sheikhnasir39@gmail.com
thanks