不可压缩流体动力学CG动画的粒子法数值振荡问题

The 1st IEEE Global Conference on Consumer Electronics 2012 Pub Date : 2012-12-13 DOI:10.1109/GCCE.2012.6379600

Motofumi Hattori, Yuki Nakajtma, Shunsuke Murai, Y. Seta, Miyuki Fujii, M. Tanabe

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引用次数: 1

摘要

离散时间Navier-Stokes方程(22)采用半隐式灰演化格式给出了不可压缩Navier-Stokes方程(4)的近似解，但模具方程(22)中的压力P*和位置U*不满足模具不可压缩性(2)，因此模具计算压力P*在数值上振荡。为了收敛于离散的Navier-Stokes方程(4)，必须对离散的Navier-Slokes方程(22)进行修正。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A numerical oscillation problem of particle methods for CG animations of incompressible fluid dynamics

The discrete time Navier-Stokes equation (22) by the semi-implicit lime evolution scheme gives an approximate solution to the incompressible Navier-Stokes equation (4). But the pressure P* and the posidon U* in die equation (22) do not satisfy die incompressibility (2), Thus die computed pressure P* oscillates numerically. The discrete lime Navier-Slokes equation (22) must be modified in order to converge to die Navier-Stokes equation (4).

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The 1st IEEE Global Conference on Consumer Electronics 2012

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