Haut PDF Eno schemes on unstructured meshes
Eno schemes on unstructured meshes
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Coupling two cell-centered finite volume schemes for solving anisotropic diffusion and fluid dynamics on unstructured moving meshes
... volume; unstructured meshes; anisotropic diffusion; ALE framework; fluid dynam- ics; ...volume schemes developed in an Arbitrary Lagrangian Eulerian (ALE) framework for solving respectively ...
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Asymptotic preserving schemes on conical unstructured 2D meshes
... diffusion schemes may adapt as well to cartesian meshes as to unstructured meshes with straight or conical edges (note also that ω can be non homogeneous and then a local ω can be used on each ...
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Upwind Schemes for the Two-Dimensional Shallow Water Equations with Variable Depth Using Unstructured Meshes
... Upwind Schemes for the Two-Dimensional Shallow Water Equations with Variable Depth Using Unstructured Meshes Alfredo Bermúdez, Alain Dervieux, Jean-Antoine Desideri, Maria Elena Vázquez.[r] ...
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Construction of very high order residual distribution schemes for steady inviscid flow problems on hybrid unstructured meshes
... 1 Number of degrees of freedom for third and fourth order approximation for triangular meshes. 59 2 Number of verti
es, triangles and quadrangles for the dierent meshes used for the grid onvergen
e. The ...
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Design of asymptotic preserving schemes for the hyperbolic heat equation on unstructured meshes
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Time-Accurate Schemes for Computing Two- and Three-Dimensional Viscous Fluxes on Unstructured Dynamic Meshes
... Unite´ de recherche INRIA Lorraine, Technopoˆle de Nancy-Brabois, Campus scientifique, 615 rue du Jardin Botanique, BP 101, 54600 VILLERS LE`S NANCY Unite´ de recherche INRIA Rennes, Iri[r] ...
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Comparison of three spatial differencing schemes in discrete ordinates method using three-dimensional unstructured meshes
... 2.3.2. The step scheme Much less sophisticated schemes are also available that are worth a detailed attention in our specific context. Con- sidering our constraints in terms of computational times, the use of the ...
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An admissibility and asymptotic-preserving scheme for systems of conservation laws with source term on 2D unstructured meshes
... to 1%. Conclusion, extensions In this work, an admissibility and AP scheme for system of conservation laws of type ( 1.1 ) on any unstructured mesh is developed, using the DLP scheme [ 21 ] as a limit scheme. The ...
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An all-regime and well-balanced Lagrange-projection type scheme for the shallow water equations on unstructured meshes
... Abstract In this work, we focus on the numerical approximation of the shallow water equations in two space dimensions. Our aim is to propose a well-balanced, all-regime and positive scheme. By well-balanced, it is meant ...
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Low-Mach correction for Lagrangian acoustic Riemann solvers on unstructured meshes
... expected, the first-order standard scheme fails to predict the correct solution, and even on the finer ∆x = 2.5 × 10 −3 grid, it remains worst than the first- order bmodified scheme. Second-order standard scheme performs ...
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A constrained transport scheme for MHD on unstructured static and moving meshes
... sian meshes, the constrained transport (CT) algorithm achieves this ...an unstructured mesh (Duffell & MacFadyen 2011; Pakmor, Bauer & Springel 2011; Pakmor & Springel 2013) and leading to the ...
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A massively parallel CFD/DEM approach for reactive gas-solid flows in complex geometries using unstructured meshes
... and the particle phase are inter-penetrating continua [6] . Its un- derlying assumption is the existence of a separation of scales: the size of the averaging region is much larger than the particle scale. This class of ...
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An all-regime Lagrange-Projection like scheme for the gas dynamics equations on unstructured meshes
... The first issue concerns the lack of accuracy in the low Mach regime of Godunov-type schemes. While these methods performs well at capturing shocks, they may generate spurious numerical diffusion when they are ...
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A multislope MUSCL method on unstructured meshes applied to compressible Euler equations for axisymmetric swirling flows
... Upwind Schemes for Conservation Laws) to get a more accurate approximation with less diusion eect while maintaining ...for unstructured meshes have been proposed (see ...
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Coupling rigid bodies motion with single phase and two-phase compressible flows on unstructured meshes
... - Interface roughness effects due to mixed cells. These issues become pregnant when dealing with unstructured grids as it is more difficult to control artificial smearing and roughness. Recently a compressive ...
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Interpolatory Catmull-Clark volumetric subdivision over unstructured hexahedral meshes for modeling and simulation applications
... subdivision schemes consistently contain the old vertices in the refined mesh after each subdivision ...quadrilateral meshes based on local refinement operations in a way similar to that for approximating ...
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An Asymptotic-Preserving Scheme for Systems of Conservation Laws with Source Terms on 2D Unstructured Meshes
... The situation is much more difficult for 2D applications however. While it is quite straightforward in the case of Cartesian grids (see [5] for example), the sit- uation is way more complex on unstructured grids. ...
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An inconditionnally stable discontinuous Galerkin method for solving the 2D time-domain Maxwell equations on unstructured triangular meshes
... cartesian meshes and are variants of the finite difference time-domain (FDTD) method due to Yee ...with unstructured meshes since the latter are particularly well adapted to the discretization of ...
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An all-regime Lagrange-Projection like scheme for 2D homogeneous models for two-phase flows on unstructured meshes
... Let us note that the classical Suliciu relaxation fluxes obtained for θ = 1 do not have a truncation error that is uniform with respect to the Mach number. 6. Numerical results We propose to test both LPS-IMEX(θ) and ...
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