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Structured grid generation method and device

A grid and target grid technology, applied in image data processing, special data processing applications, instruments, etc., can solve problems such as large limitations of structural grid patterns, and achieve the effect of reducing limitations and solving large limitations

Active Publication Date: 2018-06-12
CHENGDU TIANFU NEW DISTRICT KUANG CHI FUTURE TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a method and device for generating structured grids to solve the problem of large limitations in the generation of structured grids in the prior art

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  • Structured grid generation method and device

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Embodiment Construction

[0034] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0035] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0036] It should be noted that the terms "first" and "second" in ...

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Abstract

The invention discloses a structured grid generation method and device. The structure grid generation method comprises the steps that the initial grid height and grid growth rate are obtained; the initial grid height is smaller than a preset height, on the condition that the grid growth rate is smaller than a preset growth rate, according to a partial differential equation, the initial grid heightand the grid growth rate are processed, and a first structure grid is obtained, wherein the first structured grid comprises a first number of grid nodes; target grid node information conforming to preset conditions is extracted from node information of the first number of the grid nodes; a second structured grid is generated according to the target grid node information, wherein the second structured grid comprises the number, smaller than the first number, of grid nodes. Accordingly, the effect of lowering the limitation of grid generation is achieved.

Description

technical field [0001] The present invention relates to the field of structured grids, in particular to a method and device for generating structured grids. Background technique [0002] At present, when generating structural grids, because the structural grids generated by partial differential equations are absolutely orthogonal, the grids are smooth and uniform, and have good adaptability to irregular boundaries, partial differential equations can be used to generate structural grids. However, there are obvious shortcomings in the structural grid generated by partial differential equations. For example, the solution of partial differential equations has divergence and convergence. When generating grids for irregular boundaries, the grid generation divergence often occurs. As a result, mesh generation fails. To ensure the success rate of grid generation, the initial height of the grid and the growth rate of the grid must be very small to ensure the convergence of the grid ...

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Application Information

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IPC IPC(8): G06F17/50G06T17/30
CPCG06T17/30G06F30/00
Inventor 不公告发明人
Owner CHENGDU TIANFU NEW DISTRICT KUANG CHI FUTURE TECH INST
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