hi all,

i am trying to simulate flow around a compressor blade, i wanted to use peroidic boundary condition to the surfaces but this particualar bc is not availabe in the menu of bc's when i use fluent. my question is do we need to specify any thing while we model the geometry and mesh the geometry for such cases. i have used icem cfd to mesh the volume around the blade. and i have done hexa hedral mesh for this particular volume.

i request to tell me how to model, mesh and use peroidic boundary condition using fluent.

thanking u all

Ramesh.K

You can make periodic boundary using the fluent text command interface. or you should specify in Gambit.

did u make the Hexa or Tetra mesh, Which type of compressor you are modeling.

Regards

hi sam, i have made hexa mesh using icem cfd. its an axial flow compressor. can u explain how to create with text command interface.

bye ramesh

Dear Ramesh,

I suggest you to make a geometry in GAMBIT (you can export your existing ICM geom to Gambit). In gambit you have to first "link" the edge/face meshes of the periodic boundary. In the zone specification, assign the edge/face to periodic boundry. this will give you the desired boundary condition of periodic once you export the mesh to Fluent.

No need to make geometry in Gambit. Just use the text command interface. it is easy just check out help of fluent.