Shock wave characteristic surface mesh reconstruction method and device, electronic device, and storage medium
A characteristic surface and grid technology, applied in the field of hypersonic aerodynamic numerical calculation, can solve the problems of ineffective efficiency, low efficiency, low efficiency, etc., and achieve high robustness
Active Publication Date: 2022-07-12
ZHEJIANG UNIV
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However, this type of method currently requires a lot of manual interaction and is inefficient. For example, it is necessary to manually identify and judge the shock wave characteristic information (for noise reduction), and it is necessary to manually select the fitting method of the shock wave characteristic surface. Calculation examples, such as the situation where multiple shock waves interfere with each other, this kind of method also needs to manually segment and identify the shock wave area, reconstruct the shock wave surface separately, and then divide the surface mesh, which is not automatic and inefficient
At present, there is no automatic and efficient method for mesh reconstruction of complex shock wave characteristic surfaces to solve such problems
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[0068] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as recited in the appended claims.
[0069] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and / or" as...
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The invention relates to the field of numerical calculation for hypersonic aerodynamics, and discloses a method and device for reconstructing a surface grid of shock wave characteristics, an electronic device and a storage medium, comprising: initial shock wave characteristics obtained by solving an arbitrary flow field solver The surface mesh and the solution result are preprocessed to construct a shock point cloud related to the solution result; based on the regional growth method, the shock point cloud is segmented to obtain a plurality of point cloud subsets; The cloud subsets generate surface meshes respectively; trim the surface meshes, and complete the edges of the cut surface meshes; and combine the completed surface meshes to obtain the desired meshes.
Description
technical field [0001] The present application relates to the field of numerical calculation for hypersonic aerodynamics, and in particular, to a method and device for reconstructing a grid of a shock wave characteristic curved surface, an electronic device, and a storage medium. Background technique [0002] In the field of hypersonic numerical calculation, shock wave, as a special and important compressible flow characteristic, is an important research object in both experimental and numerical calculations. The existence of shock waves has a very important effect on the flow in the whole problem domain, for example, shock waves can provide lift for hypersonic vehicles. In practical engineering applications, it is often necessary to obtain the characteristics of the shock wave, and then the flow field calculation with relatively high precision and low dissipation can be carried out. Taking the shock wave assembly method as an example, this kind of numerical method requires ...
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IPC IPC(8): G06F30/28G06T17/00G06T7/10G06F111/10G06F113/08G06F119/14
CPCY02T90/00
Inventor 陈建军傅珂杰王毅夫解利军郑耀
Owner ZHEJIANG UNIV