Physics-based oil-water mixing phenomenon visual simulation method

Abstract

The invention relates to a physics-based oil-water mixing phenomenon visual simulation method, comprising the steps that firstly, based on particle representation of a fluid simulation method based onparticle representation, conducting unified modeling representation on different kinds of fluid, and abstracting oil liquid and water liquid into two kinds of infusible fluid essentially; secondly, solving particles in all the models through a hydrodynamic equation; and finally, constraining the infusible fluid by applying a constraint condition based on a point position method so as to control the deformation and movement of the oil-water two liquids, and ensuring the stability and correctness of a simulation numerical value by correcting a boundary condition. According to the physics-basedoil-water mixing phenomenon visual simulation method, the unified particle model is used for overall modeling, and the point position information is used for restraining the deformation of the infusible fluid and the interaction of the multiphase flow, so that the calculation amount of multiphase flow coupling simulation is reduced, and the calculation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of fluid simulation of computer animation, in particular to a physics-based visualization method for simulating non-fusible multiphase flow fluid, and in particular refers to the dynamic simulation of oil-water mixing phenomenon. Background technique [0002] In the past two decades, more and more researchers in the field of physical simulation have turned their attention to the modeling of complex fluid phenomena. Among them, fluid simulation based on real physical rules has been widely studied in computer animation. Some methods for interactive simulation of multiphase fluids have been proposed one after another, including simulation of fusion and separation of multiphase fluids, interactive simulation of non-fusible multiphase flows, stratification of fluids with different densities, and so on. However, since the multiphase flow simulation is more complicated than the single-phase fluid simulation, the ca...

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the invention is: aiming at the problem that the existing discrete particle-based method is difficult to directly simulate the infusible multiphase flow, the shape matching constraint method in the method based on point position information is introduced to constrain the motion and shape of the infusible fluid , solves the dynamic interaction problem of non-fusible fluids, realizes the simulation of non-fusible multiphase fluids under the fluid simulation framework based on particle representation, has high computational efficiency and small computational complexity, and satisfies the physical reality. Requirements for visual simulation of fusion multiphase fluids

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