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SPH-based fluid analysis simulation device and method and computer program

A fluid analysis and simulation device technology, applied in computer-aided design, calculation, instruments, etc., can solve problems such as multi-calculation

Pending Publication Date: 2022-07-29
益爱特有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, in a mesh-based structural model composed of triangles, when judging the possibility of collisions between particles and triangles, there is a problem that too many calculations are required as the number of particles and triangles increases.

Method used

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  • SPH-based fluid analysis simulation device and method and computer program
  • SPH-based fluid analysis simulation device and method and computer program
  • SPH-based fluid analysis simulation device and method and computer program

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Embodiment Construction

[0036] Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art to which the present invention pertains can be easily implemented. However, the present invention can be implemented in various ways and is not limited to the embodiments described below. In addition, in order to explain the present invention clearly, parts irrelevant to the description are omitted in the drawings, and like reference numerals are attached to like parts throughout the specification.

[0037] Throughout the specification, when it is indicated that a certain part is "connected" to other parts, it includes not only the case of "direct" connection, but also the case of "electrically connected" by interposing other elements therebetween. Moreover, when it is indicated that a certain part "includes" a certain constituent element, it means that other constituent elements are also included instead of excl...

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Abstract

An SPH (Smoothed Partial Hydrodynamics)-based fluid analysis simulation device is provided with: a modeling unit that generates a mesh-based structural model comprising a plurality of polygons, and a plurality of particles located in the structural model; a polygon information generation unit that generates polygon information on each of the plurality of polygons; a cell information generation unit that divides a space in which the plurality of particles and the plurality of polygons are present into a plurality of cells, and generates cell information for each of the plurality of cells; and a collision determination unit that determines the possibility of a collision between the particle and the polygon on the basis of the correlation data of the plurality of particles, the polygon information, and the cell information.

Description

technical field [0001] The invention relates to a fluid analysis simulation device, method and computer program based on SPH (Smoothed Particle Hydrodynamics). Background technique [0002] Computational Fluid Dynamics (CFD), as a field of fluid dynamics, uses a computer to calculate the dynamic motion of fluid in a numerical analytical way. Computational fluid dynamics through Finite Difference Method (FDM), Finite Element Method (FEM), Finite Volume Method (FVM) and Smoothed Particle Hydrodynamics (SPH), etc. The movement of the fluid is calculated by discretizing the Navier-Stokes Equation. [0003] The methods for calculating the Navier-Stokes equations include a grid-based method that discretizes the spatial domain into a small spatial grid (Mesh orGrid) operation, and a particle-based method that expresses the fluid by agglomeration of a plurality of particles. [0004] Based on the particle method, the analysis objects are represented by particles instead of grids, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/00
CPCG06F30/28G06F30/25G06F2113/08G06F30/23
Inventor 宋尚民李基东韩哲敏
Owner 益爱特有限公司
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