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A fast cutting surface search method for domain decomposition in parallel numerical simulation

A region decomposition and fast cutting technology, applied in design optimization/simulation, electrical digital data processing, special data processing applications, etc., can solve problems such as low efficiency, and achieve the effect of improving search efficiency

Active Publication Date: 2018-12-14
中国空气动力研究与发展中心超高速空气动力研究所
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a fast method for parallel numerical simulation area decomposition in view of the defect that the search for the cutting surface is not combined with the distribution characteristics of particles or grids in the simulation area in the prior art, and the efficiency is low. Cutting surface search method

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  • A fast cutting surface search method for domain decomposition in parallel numerical simulation
  • A fast cutting surface search method for domain decomposition in parallel numerical simulation
  • A fast cutting surface search method for domain decomposition in parallel numerical simulation

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] The invention provides a fast cutting surface search method for parallel numerical simulation region decomposition, the method comprising:

[0038] According to the distribution characteristics of particles or grids in the simulation area, a monotonically decreasing function about the cutting surface is constructed, so that when the cu...

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Abstract

The invention relates to a fast cutting surface search method for region decomposition of parallel numerical simulation, which comprises the following steps: according to the distribution characteristics of particles or grids in the simulation region, a monotonic decreasing function about the cutting surface is constructed, so that when the cutting surface is in the correct position, the monotonicdecreasing function value is 0; then the benchmark function is constructed to measure the relative error of the cutting surface. The expected cutting surface is obtained by iterative method using monotonic decreasing function and benchmark function. The invention continuously narrows the searching range of the cutting surface through an iterative algorithm and can quickly converge to the cuttingsurface.

Description

technical field [0001] The invention relates to the technical field of area division in parallel numerical simulation, in particular to a fast cutting surface search method for area decomposition of parallel numerical simulation. Background technique [0002] In parallel numerical simulation, it is usually necessary to divide the area, that is, the space area to be simulated needs to be divided into several blocks. A calculation process is used for each divided specific area to ensure that the number of particles (particle simulation method) or grid number (finite element simulation method) contained in each specific area is basically the same. [0003] The most commonly used division method is to divide the space area to be simulated evenly along the coordinate axis, that is, to establish cutting planes along the X axis, Y axis, and Z axis in sequence to complete the area division. The cutting plane is generally determined by a search method. The traditional cutting surfa...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20G06F30/23
Inventor 陈鸿李毅柳森任磊生周浩兰胜威王马法
Owner 中国空气动力研究与发展中心超高速空气动力研究所
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