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

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...

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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, especially the subsequent diffusion process after being absorbed.

[0018] On the other hand, some software or methods consider the response of larger-scale water bodies, and seldom consider the simulation calculation of small-scale water bodies

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