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A method for automatic decomposition of multi-connected domains based on two-dimensional heat conduction differential equations

A multi-connected area and differential equation technology, applied in the numerical field of computational fluid dynamics, can solve the problems of labor-intensive time-consuming, efficiency and processing capacity that cannot meet real-time performance, and achieve the effect of liberating labor force, easy handling and high efficiency

Active Publication Date: 2021-01-08
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

However, for different regions, it is necessary to re-partition. This method will consume a lot of manpower and time in practical applications, and the efficiency and processing capacity cannot meet the real-time requirements.

Method used

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  • A method for automatic decomposition of multi-connected domains based on two-dimensional heat conduction differential equations
  • A method for automatic decomposition of multi-connected domains based on two-dimensional heat conduction differential equations
  • A method for automatic decomposition of multi-connected domains based on two-dimensional heat conduction differential equations

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0024] The purpose of the present invention is to solve the problems that multi-connected regions need to be partitioned when meshing them, but manual partitioning takes a long time and the workload is repetitive and cumbersome. combined with figure 1 , the content of this method is as follows:

[0025] Step 1) Yes figure 2 As shown in the multi-connected area, the area is discretized, and the boundary line of the computational domain is divided into several segments with several points, and these points are connected according to the shape of the computational domain so that the computational domain is divided into several non-overlapping sub-areas. A structured grid solution is used, that ...

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Abstract

The invention discloses a method of automatically decomposing a multi-communicated region on the basis of a two-dimensional heat conduction differential-equation. According to the method, firstly, themulti-communicated region needing to be partitioned is discretized; then heat sources, a boundary condition and initial values are successively set, and a numerical solution of two-dimensional steady-state heat conduction is calculated; and finally, which communicated region a node belongs to is determined according to a maximum value of node temperature. According to the method, a computer program is utilized to derive a temperature field, thus the multi-communicated region is automatically decomposed, and massive labor force is liberated. The method has applicability for arbitrarily complexmulti-communicated regions, and is high in efficiency.

Description

technical field [0001] The invention relates to a method for automatically decomposing multi-connected regions based on a two-dimensional heat conduction differential equation, and belongs to the numerical technical field of computational fluid dynamics. Background technique [0002] The first step of numerical simulation is grid division. In the actual application process, there will be a large number of multi-connected regions. When meshing multi-connected regions, it is necessary to decompose this region, and then mesh each decomposed block. divided. The quality of the partition directly affects the quality of the grid. The current partition method is mainly manual partition, which is decomposed according to the characteristic structure of the region. However, for different regions, it is necessary to re-partition, this method will consume a lot of manpower time in practical application, and the efficiency and processing capacity cannot meet the real-time requirements. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/13G06F30/28G06F111/10G06F113/08G06F119/08G06F119/14
CPCG06F17/13G06F30/20G06F2111/10G06F2119/08
Inventor 赵璐刘勇岳孟赫张祥
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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