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Introduction to Computational Fluid Dynamics by M. K. Laha, S. K. Chakrabartty, Pradip Niyogi

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8

Grid Generation

Hierarchy of governing differential equations of fluid mechanics and boundary conditions have been discussed in the previous chapter. The choice of the governing differential equations depends on the complexity of the problem and the requirement of the user. Once the governing equations to be solved to suit the problem of interest are fixed, the next step involved is called the pre-processing. In the first part of this step, usually called the geometrical data processing, a comprehensive geometry in a global coordinate system is obtained from the component-wise data or a drawing sheet supplied by the user. Next is the discretization of the flow domain called the grid generation. As an example of solving elliptic type differential ...

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