Flow over 2-d square cylinder
 

I WANT STUDY FLOW OVER 2-D SQUARE CYLINDER.I NEED TUTORIAL FOR CREATING MESH FOR SQUARE CYLINDER IN ICEM. It's not available so if any one can help please reply or post it here.
Any type of mesh which is fine enough for better result... i did O Grid for circular cylinder ... don;t know what to do for square one and how?

I think you need to be more specific? what type of mesh are you interested in? and other details. otherwise no one can help you.