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Showing 1 to 4 of 4 for “"approximate Riemann solvers"”.
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Conservative numerical schemes for unsteady 1D two phase flow
… la solución exacta o aproximada de problemas de Riemann usando métodos tipo Godunov tales como "Approximate Riemann Solvers" o métodos "Flux Vector Splitting". Fundamentalmente hemos estudiado los esquemas TVD, TVD Adaptados y la familia de esquemas AUSM. [ENG]The thesis is devoted to the …
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Computational modeling of advanced, multi-material energetic materials and systems
… over time and represent internal solid regions. Approximate Riemann solvers and the Ghost Fluid Method or Overlap Domain Method are used to enforce appropriate interface boundary conditions. Ghost nodes are set by a new local and point-wise node sorting algorithm that decouples these nodes by …
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Multidimensional systems of hyperbolic conservation laws, numerical schemes, and characteristic theory : connections, differences, and numerical comparison
… 1959. This scheme is based on exactly solving a Riemann problem at each cell interface and then projecting the solution back onto the space of piecewise constant functions after some finite time step. A major drawback of Godunov's scheme is the necessity to solve all the Riemann problems exactly, …
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Efficient finite-volume schemes for magnetohydrodynamic simulations in solar physics
… and three spatial dimensions. We introduce a new approximate Riemann solver for the ideal gas MHD equations (MHD-HLLEM) that outperforms all other solvers considered. We present and compare several Riemann solvers that are suitable for the real gas case of an arbitrary equation of state (EOS) …