Fabric surface microcosmic water diffusion process visualization method based on SPH (smoothed particle hydrodynamics)

A technology of water diffusion and fabric, applied in the field of SPH-based visualization of the microscopic water diffusion process on the surface of fabrics, can solve problems such as seldom considering small-scale water body simulation calculations, and no more consideration of the reaction and changes of fluids and external contacts.

Active Publication Date: 2017-08-08
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

[0017] However, on the one hand, some such software or methods pay more attention to the visual expression of the water body itself, and do not consider the reactions and changes of the fluid in contact with the outside world, especia

Method used

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  • Fabric surface microcosmic water diffusion process visualization method based on SPH (smoothed particle hydrodynamics)
  • Fabric surface microcosmic water diffusion process visualization method based on SPH (smoothed particle hydrodynamics)
  • Fabric surface microcosmic water diffusion process visualization method based on SPH (smoothed particle hydrodynamics)

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Embodiment Construction

[0077] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings, but the implementation and protection of the present invention are not limited thereto.

[0078] A method for visualization of microscopic water diffusion process on fabric surface based on SPH, comprising the steps of:

[0079] (13) Construct SPH microscopic water fluid;

[0080] (14) Find the spatial grid of SPH microscopic water fluid;

[0081] (15) Obtain surface tension and contact angle based on SPH microscopic water fluid;

[0082] (16) Design fabric structure;

[0083] (17) Design the diffusion channel based on fabric structure;

[0084] (18) Design the collision and absorption of microscopic water fluid and fabric.

[0085] Step (13) specifically includes:

[0086] (a) Calculation of fluid particle area density

[0087] The area density of fluid particle particles is calculated by accumulating the number of particles near the...

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Abstract

The invention discloses a fabric surface microcosmic water diffusion process visualization method based on SPH (smoothed particle hydrodynamics). The method comprises following steps: creating an SPH microcosmic water fluid; looking up space grids of the SPH microcosmic water fluid; acquiring surface tension and a contact angle based on the SPH microcosmic water fluid; designing a fabric structure; designing diffusion channels based on the fabric structure; designing collision and absorption of the microcosmic water fluid and fabric. From the point of the small-scale water fluid, the method is mainly specific to reactions between different small-scale fluids in a three-dimensional space and fabric made of different materials during contact as well as simulation of the diffusion process of fluid molecules in the fabric, and visualized display of results is performed.

Description

technical field [0001] The invention relates to the technical field of simulation process calculation and visualization display under the specific physical characteristics of known fluid and fabric materials, in particular to a method for visualization of fabric surface microscopic water diffusion process based on SPH (smoothed particle hydrodynamics, smooth particle dynamics). Background technique [0002] There are two main types of fluid simulation technologies at present, one is mesh-free fluid simulation, also known as particle-based fluid simulation, and the other is grid-based fluid simulation. [0003] Particle-based fluid simulation technology mostly uses the Lagrangian method, which considers the micro-cluster in the fluid, or the position change law of the particle over time, and uses the motion law of the particle to represent the motion of the entire fluid. [0004] The Smoothed Particle Hydrodynamics Method ("Smoothed Particle Hydrodynamics Method") is a simula...

Claims

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Application Information

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IPC IPC(8): G06F17/50G01N13/00G01N13/02
CPCG01N13/00G01N13/02G01N2013/003G01N2013/0208G01N2013/0283G06F30/20
Inventor 毛爱华王茗乐罗洁
Owner SOUTH CHINA UNIV OF TECH
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