Fluid analogue simulation method based on SPH kernel function

Abstract

The invention relates to the crossing field of computer graphic processing and industrial design, in particular to a fluid analogue simulation method based on an SPH kernel function, which comprises the following steps: selecting a smooth kernel function to calculate particle attributes, and solving a particle acceleration formula; utilizing a particle acceleration formula to construct a basic fluid particle simulation model based on an SPH algorithm; by modifying parameters of a set density smooth kernel function, simple deformation and complex deformation are carried out on a basic fluid simulation model. The simulation method is diversified in function, simpler to operate and more obvious in implementation effect, the fluid design effect can be visually achieved by people after computergraphics is combined, and a user can conveniently enable the model to achieve the preset effect through density kernel function parameter adjustment.

Description

technical field [0001] The invention relates to the cross field of computer graphics processing and industrial design, in particular to a fluid simulation method based on SPH kernel function. Background technique [0002] Fluids are an important part of the natural landscape. Different fluids have different densities and viscous forces, complex structures, and beautiful natural shapes. They are indispensable components in systems such as virtual reality, computer games, and film and television animations. So far, the relatively mature fluid modeling algorithm is the SPH algorithm. Nowadays, many people achieve the fluid model they want by changing the kernel function in the SPH algorithm, but the operation is complicated and the realization effect is relatively simple. [0003] Nowadays, fluid modeling presents a trend of diversification, and it is very complicated to construct a fluid kernel function that meets the requirements. Therefore, to a certain extent, it is very ...

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Problems solved by technology

[0004] Aiming at the problems of complexity and single effect of existing kernel functions, the present invention proposes a fluid simulation method based on SPH kernel function, constructs a basic fluid particle model through SPH algorithm, and modifies the optimized particle density kernel function. The exponent element, and then manually adjust the parameter values ​​​​limiting the particle force, so that the change of particle acceleration can reach the preset fluid model in people's mind.

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