Conservation Laws Physics
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Scaling Symmetries and Conservation Laws for Variable-coefficients Nonlinear Dispersive Equations
RESUMO. Simetrias de escala surgem em diferentes ramos da física e abordagens baseadas em simetria são poderosas ferramentas para estudar modelos invariantes por escala, pois podem fornecer leis de conservação que não são óbvias por inspeção. Nessa perspectiva, a classe de equações dispersivas não-lineares com coeficientes variáveis vc K ( m ,
TEMA (São Carlos). Publicado em: 13/12/2019
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2. Una aplicación del teorema de conservacion de la energía como problema integrador
It is shown here the solution of a problematic situation in context, which is quite different from the exercises solved by the students usually. It is framed in Rich Problems in Context's strategy of solution, in which the students are involved actively and reliably for giving the answer. This problematic situation was presented to students of Bachelor in Ph
Revista Brasileira de Ensino de Física. Publicado em: 2011-03
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3. Métodos numéricos euleriano-lagrangeanos para leis de conservação / Eulerian-lagrangina numeric methods for conservation laws
Este trabalho apresenta uma família de novos métodos numéricos euleriano-lagrangeanos localmente conservativos para leis de conservação hiperbólicas escalares. Estes métodos não utilizam soluções analíticas de problemas de Riemann e são bastante precisos na captura de saltos nas soluções. Estes métodos foram introduzidos, implementados computa
Publicado em: 2008
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4. Uma nova abordagem numérica para a injeção de traçadores em reservatórios de petróleo / A new numerical approach for the injection of tracers in petroleum reservoirs
The injection of tracers are used in the investigation of ows in heterogeneous porous media, in studies related to the simulation of miscible dispacements in petroleum reservoirs and the dispersion of contaminants in aquifers. In this work we present new algorithms for the numerical approximation of tracer injection problems. We discuss recent developments o
Publicado em: 2008
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5. Methods for transport equations with random data / Metodos para equações do transporte com dados aleatorios
Mathematical models for real-world processes often take the form of systems of artial differential equations. Such models usually involve certain parameters, for example, the coefficients in the differential operator, and the initial and boundary conditions. Usually, all the model parameters are assumed to be known exactly. However, in realistic situations m
Publicado em: 2007
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6. Conservative front tracking and level set algorithms
Hyperbolic conservation laws are foundational for many branches of continuum physics. Discontinuities in the solutions of these partial differential equations are widely recognized as a primary difficulty for numerical simulation, especially for thermal and shear discontinuities and fluid–fluid internal boundaries. We propose numerical algorithms that
The National Academy of Sciences.
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7. A fast, high resolution, second-order central scheme for incompressible flows
A high resolution, second-order central difference method for incompressible flows is presented. The method is based on a recent second-order extension of the classic Lax–Friedrichs scheme introduced for hyperbolic conservation laws (Nessyahu H. & Tadmor E. (1990) J. Comp. Physics. 87, 408-463; Jiang G.-S. & Tadmor E. (1996) UCLA CAM Report 96-36, SIAM J.
The National Academy of Sciences of the USA.