semi-Lagrangian scheme
Metamorphic image registration using a semi-Lagrangian scheme
... a semi-Lagrangian scheme for geodesic ...a semi-Lagrangian scheme is more stable than a standard Eulerian ...· semi-Lagrangian ...
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A semi-Lagrangian scheme for mean curvature motion with nonlinear Neumann conditions
... the semi-Lagrangian scheme proposed in [7] on a triangular ...The semi-Lagrangian method consists essentially of applying a finite difference scheme along a characteristic ...the ...
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An adaptive sparse grid semi-lagrangian scheme for first order Hamilton-Jacobi Bellman equations
... new semi-Lagrangian scheme on an adaptive sparse ...the scheme, and secondly, a particular type of boundary treatment using non- standard basis ...
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A semi-Lagrangian scheme for Lp-penalized minimum time problems
... A semi-Lagrangian scheme for L p -penalized minimum time problems Maurizio Falcone 1 and Dante Kalise 2 and Axel Kr¨oner 3 Abstract— In this paper we consider a semi-Lagrangian ...
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Metamorphic image registration using a semi-Lagrangian scheme
... a semi-Lagrangian scheme for this part we avoid to compute a discrete approximation of ∇ · (ztvt), but still need to compute an approximation of ∇ · ...
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Field-aligned interpolation for semi-Lagrangian gyrokinetic simulations
... series of directional advections: ( ˆ v k / 2 , ϕ/ ˆ 2 , rθ, ˆ ϕ/ ˆ 2 , v ˆ k / 2). Each directional advection is performed with the semi-Lagrangian scheme. This procedure is named Strang-splitting ...
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A 5D gyrokinetic full-f global semi-lagrangian code for flux-driven ion turbulence simulations
... of semi-Lagrangian scheme for a 4D drift-kinetic model [ 55 ...difference scheme [ 71 , 70 ] which conserves both L 1 and L 2 ...or semi-Lagrangian– has advantages and drawbacks ...
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A semi-Lagrangian algorithm in policy space for hybrid optimal control problems
... a Semi-Lagrangian scheme for hybrid Dynamic Pro- gramming problems in infinite horizon ...numerical scheme has been made more efficient by a Policy Iteration type ...the scheme is ...
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Accuracy of unperturbed motion of particles in a gyrokinetic semi-Lagrangian code
... Forward Semi-Lagrangian scheme The Forward Semi-Lagrangian scheme [CRS09] (the acronym is FSL) is an alternative to the classical Backward Semi-Lagrangian ...
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Improving conservation properties in a 5D gyrokinetic semi-Lagrangian code
... Let us evaluate the improvements brought by all the techniques described in Sections 3.1, 3.2, 3.4. First, the new splitting introduces a clear separation between linear terms and non-linear terms, which improves ...
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Conservative semi-Lagrangian schemes for Vlasov equations
... m´ethodes semi-Lagrangiennes traditionnelles, mais pour les m´ethodes conservatives, il est possible d’ajouter des filtres qui garantissent la positivit´e de la ...m´ethodes semi-Lagrangiennes ...
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A semi-implicit electromagnetic FEM-PIC scheme with exact energy and charge conservation
... ChECSIM scheme is still linearly implicit in the fields and explicit in the particles, and it now preserves exactly the total energy and the discrete charge in a sense that is compatible with the ...
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A nominally second-order cell-centered Lagrangian scheme for simulating elastic-plastic flows on two-dimensional unstructured grids
... cell-centered Lagrangian scheme devoted to the numeri- cal simulation of solid dynamics on two-dimensional unstructured grids in planar ...numerical scheme relies on a finite volume cell-centered ...
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Historical Lagrangian Dynamics
... (the “ fields”) are forms rather than functions, like for electromagnetism or the first order formulations of general relativity. Such forms are treated as genuine objects and not decomposed into their components. We ...
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A stiffly stable semi-discrete scheme for the characteristic linear hyperbolic relaxation with boundary
... j ≤ 1/2, (0, 0), if x j > 1/2. Let us first observe that these data are compatible in the corner (x, t) = (0, 0) in the sense that Bf 0 (0) = b(0). Moreover the choice of an initial data with support in [0, 1/2] is ...
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A Splitting in Time Scheme and Augmented Lagrangian Method for a Nematic Liquid Crystal Problem
... element scheme based on a saddle-point formulation of the director vector is proposed in [1], allowing to consider the limit problem (1)-(6) and the penalized problem (using a Ginzburg-Landau functional) in a ...
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A high-order cell-centered Lagrangian scheme for two-dimensional compressible fluid flows on unstructured meshes
... cell-centered Lagrangian scheme for solving the two-dimensional gas dy- namics equations on unstructured ...a scheme that is compatible with the geomet- ric conservation law ...first-order ...
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High order Semi-Lagrangian particle methods for transport equations: numerical analysis and implementation issues
... are Lagrangian methods that have been designed for advection dominated problems, with applications mostly in plasma physics [ 10 ], incompressible flows [ 4 , 7 , 16 ], or gas dynamics [ 20 ...
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A semi-Lagrangian discontinuous Galerkin convergence
... the Semi- Lagrangian Discontinuous Galerkin scheme (SLDG) of arbitrary ...a scheme has been developped already in [7] and then more recently in [9, 11, 5] for Vlasov-Maxwell/Poisson ...the ...
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A high-order cell-centered Lagrangian scheme for compressible fluid flows in two-dimensional cylindrical geometry
... The most natural way to solve this problem employs a staggered discretization in which position, velocity and kinetic energy are centered at points, while density, pressure and internal energy are within cells. The ...
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