Practical fluid flows are often associated with complex physical domains. Simulating such fluid flows accurately and efficiently remains a challenge in the Computational Fluid Dynamics. In doing so, the computational mesh must be able to properly represent the physical domain and be organized in an efficient way. This book describes the author’s research on the development of mesh generation and multi-block algorithm for 2D numerical models in geometrically complex domains. Two improved RL elliptic generation systems were developed by using the contribution factors to achieve the mesh density control and the global balance of mesh orthogonality and smoothness. A 2D structured mesh generator--the CCHE-MESH has been developed (free at http://www.ncche.olemiss.edu/software/downloads). A multi-block algorithm based on a consistent interpolation method along with a Lagrangian interpolation method was also developed. It is capable of maintaining both mass balance and momentum balance at the block interfaces. The proposed mesh generation techniques and multi-block algorithm were successfully applied to complex domains and produced satisfactory results.

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