# [PDF] Top 20 Compressible flow solvers using unstructured grids

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### Compressible flow solvers using unstructured grids

... L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignemen[r] ... Voir le document complet

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### A high-order cell-centered finite volume scheme for simulating three dimensional anisotropic diffusion equations on unstructured grids

... with **unstructured** three- dimensional **grids** composed of tetrahedral and/or hexahedral ...computed **using** the finite difference of the ad- jacent ...elliptic **flow** equation encountered in the ... Voir le document complet

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### Coupling rigid bodies motion with single phase and two-phase compressible flows on unstructured meshes

... Cartesian **grids** are considered instead of **unstructured** ...sophisticated **flow** models, such as multiphase **flow** ...of **unstructured** meshes by Farhat et ... Voir le document complet

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### 1D and 2D solvers coupling for free surface flow modelling

... fine **grids** have to be used to obtain a suitable representation of the hydrodynamic fields near the points of ...if **unstructured** meshes or grid refinement allow to decrease the size and the computation time ... Voir le document complet

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### A conservative coupling algorithm between a compressible flow and a rigid body using an Embedded Boundary method

... fluid **flow** model is considered, being convenient for treating such short time scale ...employed, **using** an Eulerian formulation for both the solid and the fluid (for instance, the diffusive interface method ... Voir le document complet

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### A high-order cell-centered Lagrangian scheme for two-dimensional compressible fluid flows on unstructured meshes

... computed **using** a nodal solver which can be viewed as a two-dimensional extension of an approximate Riemann ...two-dimensional **compressible** fluid flows show the robustness and the accuracy of our new ... Voir le document complet

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### Low-Mach correction for Lagrangian acoustic Riemann solvers on unstructured meshes

... by **using** unreasonably fine ...scheme **using** an acoustic Godunov solver on **unstructured** mesh, and has a negligible cost in term of CPU ...very **compressible**, the low-Mach correction can have a ... Voir le document complet

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### Unstructured Meshes for Large Rigid Body Motions Using Mapping Operators

... body motions, while lifting the constraint that mesh nodes remain attached to moving boundaries. The main advantage of this approach is to preserve the mesh connectivity as time evolves, making it well suited for ... Voir le document complet

131

### Deciding Non-Compressible Blocks in Sparse Direct Solvers using Incomplete Factorization

... Project-Team HIEPACS Research Report n ° 9396 — February 2021 — 16 pages Abstract: Low-rank compression techniques are very promising for reducing memory footprint and execution time on a large spectrum of linear ... Voir le document complet

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### Locally refined discrete velocity grids for stationary rarefied flow simulations

... expensive in transitional regimes, in particular for flows in the range of altitude we are interested in. The efficiency of DSMC can be improved by **using** coupling strategies (see [12, 14]) or implicit schemes ... Voir le document complet

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### A Cell-Centered Lagrangian Scheme for Two-Dimensional Compressible Flow Problems

... is an accurate and robust method, which can produce impressive results, even on **unstructured** polygonal **grids**, see for instance [21]. An alternative to the staggered discretization is to use a conservative ... Voir le document complet

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### Global stability of compressible flow about a swept parabolic body

... stability, **compressible** leading-edge **flow**, direct numerical simulation, Krylov subspace methods, matrix-free implementation, Cayley transformation R´ esum´ e L’objet de cette th`ese est l’´etude d’un ... Voir le document complet

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### Contact modeling from images using cut finite element solvers

... In this article, we introduce an alternative approach related to X-FEM [24, 14, 22] and CutFEM [4, 17]. We start from surface triangulations generated by a segmentation tool. This surface mesh, which may be of poor ... Voir le document complet

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### A 3D cell-centered ADER MOOD Finite Volume method for solving updated Lagrangian hyperelasticity on unstructured grids

... (LAM P 0 -lim) and P 1 → P lim 1 → P 0 (LAM P 1 -lim) for the vertical displacement at the barycenter of the plate (left) and the computed numerical dissipation (88) as a function of time (right). 5.3 Finite deformation ... Voir le document complet

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### Camera-Projector Matching Using an Unstructured Video Stream

... In this test case, we projected the video on a two-plane wedge located 800mm away from the camera. First, we re- constructed the 3D wedge with a structured-light technique involving gray code and phase shift [ 18 ] on ... Voir le document complet

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### A high-order finite volume cell-centered scheme for anisotropic diffusion on two-dimensional unstructured grids

... sin θ, where (r, θ) are the polar coordinates corresponding to the Cartesian coordinates (x, y). The corresponding distorted grid obtained setting a0 = 0.25 and n = 8 is plotted in Figure 22(b). Now, we compute the ... Voir le document complet

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### Parallel unstructured mesh adaptation using iterative remeshing and repartitioning

... 10: Output(mesh groups); /* Return repartitioned groups */ • Non-intrusive linkage with third-party **solvers**; • Improvable parallel performances by means of dynamic load balancing. Open-source software packages are ... Voir le document complet

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### A nominally second-order cell-centered Lagrangian scheme for simulating elastic-plastic flows on two-dimensional unstructured grids

... non structur´ es bidimensionnels R´ esum´ e : In this paper, we describe a cell-centered Lagrangian scheme devoted to the numeri- cal simulation of solid dynamics on two-dimensional **unstructured** **grids** in ... Voir le document complet

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### Implementing multifrontal sparse solvers for multicore architectures with Sequential Task Flow runtime systems

... The performance of both parallel 1D and 2D methods depends on the choice of the values for a number of different parameters. For the 1D case these are the block- column nb on which depends the amount of concurrency and ... Voir le document complet

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### Simulation of compressible viscous flows on a variety pf MPPs : computational algorithms for unstructured dynamic meshes and performance results

... Unite´ de recherche INRIA Lorraine, Technoˆpole de Nancy-Brabois, Campus scientifique, 615 rue de Jardin Botanique, BP 101, 54600 VILLERS LE`S NANCY Unite´ de recherche INRIA Rennes, IRI[r] ... Voir le document complet

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