creating a Mesh for CFD

Hello

I am fairly new to CFD having tried to use Code saturne for too long and given up I have now come to Hyperworks.

Being a fairly basic user I would like a fairly basic tutorial to create a mesh and boundary conditions for a single geometry. The mesh will be a solid block with no moving parts subjected to a range of wind speeds.     

All the tutorials I have seen complicate the instructions with fancy twiddly bits like moving parts etc. and I am never sure of the basic instructions at the core.

Hope someone can help 

Many thanks

Peter