A viscous fluid modeling method based on the approximate solution of sph method
A viscous fluid and modeling method technology, applied in the field of viscous fluid modeling, can solve the problems of slow calculation speed and inability to realistically simulate viscous fluid, etc., achieve the effect of reducing the amount of calculation, enriching motion scenes, and solving the phenomenon of particle clustering
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[0073] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0074] The invention proposes a viscous fluid modeling method based on the approximate solution of the SPH method, which greatly simplifies the N-S equation by using the characteristics of the particle system fluid modeling, and builds the basic framework of viscous fluid simulation; and corrects the particle size through the pressure-density relaxation model The movement position solves the problem of particle clustering caused by the traditional SPH method; then, the spring model is introduced to describe the fluid elasticity and plasticity, the particle velocity is corrected, and the temperature factor is introduced to adjust the correction value to truly describe the fluid viscosity , so as to describe the viscoelasticity of the fluid in multiple dimensions; in addition, the thermodynamic equation is introduced to...
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