A feature-based method for capturing discontinuity in flow field
A flow field and space technology, applied in the numerical field of computational fluid dynamics, can solve problems such as order reduction and inefficient numerical format, and achieve the effect of improving computational efficiency
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[0059] The present invention will be further described below in conjunction with the accompanying drawings and examples. It should be understood that the following examples are intended to facilitate the understanding of the present invention, and have no limiting effect on it.
[0060] figure 1 Shows the process flow chart of the feature-based discontinuous capture method of the present invention, including the following steps: meshing the calculation area of the problem to be solved to generate a structured grid or an unstructured grid; combining with high-order numerical format calculation The unit average value of the numerical solution of the problem to be solved in the space unit; use the unit mean value of the space unit to calculate the characteristic mean value of the hyperbolic (vector) conservation law equation of the space unit; use the geometric topological relationship of the grid to construct Cell-left-weighted and cell-right-weighted averages, and / or cell-bot...
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