Repositório Digital

A- A A+

Efficient smoke simulation on curvilinear grids

.

Efficient smoke simulation on curvilinear grids

Mostrar registro completo

Estatísticas

Título Efficient smoke simulation on curvilinear grids
Autor Azevedo, Vinicius da Costa
Orientador Oliveira Neto, Manuel Menezes de
Data 2012
Nível Mestrado
Instituição Universidade Federal do Rio Grande do Sul. Instituto de Informática. Programa de Pós-Graduação em Computação.
Assunto Computação gráfica
Processamento : Imagem
[en] Animation
[en] Curvilinear grids
[en] Fluid simulation
[en] Overlapping grids
[en] Three-dimensional graphics and realism
[en] Types of simulation
Abstract This thesis present an efficient approach for performing smoke simulation on curvilinear grids. The solution of the Navier-Stokes equations on curvilinear is made on three steps: advection, pressure solving and velocity projection. The proposed advection method is simple, fast and unconditionally-stable. Our solution is able to maintain a staggered-grid variable arrangement, and includes an efficient solution to enforce mass conservation. Compared to approaches based on regular grids traditionally used in computer graphics, our method allows for better representation of boundary conditions, lending to more realistic results, with just a small increment in computational cost. Moreover, we are able to condensate cells where interesting artifacts tend to appear, like swirling vortices or turbulence. We demonstrate the effectiveness of our approach, both in 2-D and 3-D, through a variety of high-quality smoke simulations and animations. These examples show the integration of our method with overlapping grids and multigrid techniques.
Tipo Dissertação
URI http://hdl.handle.net/10183/78361
Arquivos Descrição Formato
000897885.pdf (1.471Mb) Texto completo Adobe PDF Visualizar/abrir

Este item está licenciado na Creative Commons License

Este item aparece na(s) seguinte(s) coleção(ões)


Mostrar registro completo

Percorrer



  • O autor é titular dos direitos autorais dos documentos disponíveis neste repositório e é vedada, nos termos da lei, a comercialização de qualquer espécie sem sua autorização prévia.
    Projeto gráfico elaborado pelo Caixola - Clube de Criação Fabico/UFRGS Powered by DSpace software, Version 1.8.1.