Computational animation of fluid flow using SPH / Animação computacional de escoamento de fluidos utilizando o método SPH

AUTOR(ES)

Tiago Etiene Queiroz

DATA DE PUBLICAÇÃO

2008

RESUMO

Since the late 70s, there is a growing interest in physically-based simulations due to its increasing range of application. Among these simulations, we may highlight interaction between rigid, elastic, plastic and breakable bodies and also fluids. In this work, one of these phenomena, fluid flow, is simulated using a technique known as Smoothed Particle Hydrodynamics, a meshless lagrangean method that solves the equations of the flow behavior of fluids. There are several advantages of meshless methods over mesh-based methods, for instance, the material properties are translated along with particles as a function of time and the ability to handle arbitrary deformations. Among the disadvantages, we may highlight a problem related to the gain of energy by the system and stability issues. In order to handle this, we used an approach based on the law of conservation of energy: in an isolated system the total energy remains constant and cannot be created or destroyed. Based on this, we used a technique that bounds the total energy and the simulation becomes less sensitive to initial conditions

ASSUNTO(S)

computação gráfica games numerical simulation smoothed particle hydrodynamics computer graphics fluid flow simulação numérica smoothed particles hydrodynamics física. jogos physics fluxo de fluido

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