Block Structured Grid

aurel

hi everyone,

could you give me a hint or reference how to discretize elliptic grid generation equation (inhomogeneous Thomas-Thames-Mastin: delta_x ksi = P) in block corner points using finite differences.

Suppose blocs are generaly connected in unstructured way. The corner point could be part of several block (ranging from 3 to whatever number - usually 6 blocks the most) in such block topology.

Does it exist some generalization of block interior, interface points discretization, or do I have to handle the corner points separately? What is the most straightforward way to overcome the problem.

The same problem arise in discretization of flow governing equation (e.g. NS eqs.).

Thanks for help. a.