Boussinesq System
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Numerical Analysis and Approximate Travelling Wave Solutions for a Higher Order Internal Wave System
ABSTRACT In this work we focus on the numerical solution of a higher order bidirectional nonlinear model of Boussinesq type involving a nonlocal operator. Based on a von Neumann stability analysis for the linearized problem, an efficient and stable scheme for the nonlinear system is proposed. Our method is based on a numerical scheme known from the literatur
Trends in Computational and Applied Mathematics. Publicado em: 2022
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2. Two-dimensional Boussinesq equations applied to channel flows: deducing and applying the equations
RESUMO Uma das hipóteses básicas adotada para a formulação teórica dos escoamentos de fluidos é a distribuição da pressão hidrostática na vertical. No entanto, muitos pesquisadores apontaram que essa simplificação pode levar a erros, em casos como o escoamento na ruptura de barragens. A discrepância entre a solução computacional e o experiment
RBRH. Publicado em: 25/04/2019
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3. Controlabilidade exata local para as trajetórias de um sistema não-linear acoplado.
This dissertation is devoted to prove the local exact controllability to the trajectories for a coupled system, of the Boussinesq kind. In the state system, the unknowns are the velocity field and pressure of the uid (y; p), the temperature (-) and an additional variable c that can be viewed as the concentration of a contaminant solute. We prove several resu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/09/2010
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4. SOLIDIFICATION AND FUSION OF PURE SUBSTANCES UNDER THE INFLUENCE OF LAMINAR AND TURBULENT NATURAL CONVECTION / SOLIDIFICAÇÃO E FUSÃO DE SUBSTÂNCIAS PURAS SOB A INFLUÊNCIA DA CONVECÇÃO NATURAL LAMINAR E TURBULENTA / SOLIDIFICACIÓN Y FUSIÓN DE SUSTANCIAS PURAS SOBRE LA INFLUENCIA DE CONVECCIÓN NATURAL LAMINAR Y TURBULENTA
Solidification and fusion belong to a class of transient heat transfer problems known as phase change problems or moving boundary problems. The solution of this class of problems presents an additional difficulty concerning the movement of the interface. This movement is due to the absorption or removal of the latent heat at the interface. As a consequence t
Publicado em: 2000
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5. Guided solitary waves
Transversely periodic solitary-wave solutions of the Boussinesq equations (which govern wave propagation in a weakly dispersive, weakly nonlinear physical system) are determined. The solutions for negative dispersion (e.g., gravity waves) are singular and therefore physically unacceptable. The solutions for positive dispersion (e.g., capillary waves or magne