High Order Upwind Schemes
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Development and testing of high-resolution upwind schemes and their applications in incompressible free surface flows / Desenvolvimento e teste de esquemas "upwind" de alta resolução e suas aplicações em escoamentos incompressíveis com superfícies livres
Neste trabalho são apresentados os resultados do desenvolvimento e teste de esquemas upwind de alta resolução para o controle da difusão numérica em leis de conservação gerais e problemas em dinâmica dos fluidos. Em particular, são derivados dois novos esquemas: o ALUS (Adaptive Linear Upwind Scheme) e o TOPUS (Third-Order Polynomial Upwind Scheme).
Publicado em: 2009
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2. AnÃlise de escoamentos compressÃveis nÃo-viscosos em trÃs dimensÃes utilizando o mÃtodo dos elementos finitos por aresta
This work has as its main goal the development of a computational tool for numerical simulation of compressible fluid flow problems for three dimensions, using as starting point the computational tool developed by LYRA (1994) that dealt with fluid flow problems in two dimensional domain. For the development of this tool, a space discretization was adopted us
Publicado em: 2008
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3. Estratégias "upwind" e modelagem k-epsilon para simulação numérica de escoamentos com superfícies livres em altos números de Reynolds / Upwind strategies and k-epsilon modeling for numerical simulation of free surface flow at high Reynolds numbers
This work is devoted to the analysis and implementation of modern high-order upwind schemes and the standard k-epsilon turbulence model into the Freeflow-2D; a finite difference integrated environment for the numerical simulation of incompressible free surface flow problems. The purpose of this study is the two-dimensional simulation of high-Reynolds incompr
Publicado em: 2005
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4. Análise e implementação de esquemas de convecção e modelos de turbulência para simulação de escoamentos incompressíveis envolvendo superfícies livres. / Analysis and implementation of convection schemes and turbulence models for simulation of incompressible flows involving free surfaces.
A considerable part of fluid flows encountered in technological applications is characterised by involving high-Reynolds numbers, especially those in turbulent regime and with free-surface. It is extremely difficult to obtain representative numerical solutions for this class of problems, due to the non-linear nature of the partial differential equations invo
Publicado em: 2001