Haut PDF An asymptotic preserving scheme for Hydrodynamics Radiative Transfert Models
An asymptotic preserving scheme for Hydrodynamics Radiative Transfert Models
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An Asymptotic Preserving Scheme for Capturing Concentrations in Age-structured Models Arising in Adaptive Dynamics
... AGE-STRUCTURED MODELS ARISING IN ADAPTIVE DYNAMICS ∗ LUIS ALMEIDA † , BENOIT PERTHAME † , AND XINRAN RUAN † ...propose an asymptotic preserving (A-P) scheme for a population ...
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Well-balanced and asymptotic preserving schemes for kinetic models
... multi-scale scheme whose stability and convergence are independent of ε refers to the asymptotic preserving (AP) ...the models behave like hyperbolic equations with source ...with an ...
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Asymptotic preserving schemes on distorted meshes for Friedrichs systems with sti relaxation: application to angular models in linear transport.
... Godunov-type asymptotic preserving schemes for the Friedrichs systems on unstructured ...using an asymptotic preserving scheme for the "diffusive" part ...
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An Asymptotic Preserving scheme for the shallow-water equations with Manning friction using viscous correction of the HLL scheme
... ] for theoretical aspects and [ 1 , 4 , 17 , 20 ] for some numerical studies) and appears in several physical problems as, for instance, in non-newtonian fluids [ 9 ...a scheme for ( ...
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Asymptotic-preserving well-balanced scheme for the electronic M1 model in the diffusive limit: particular cases.
... moments models represent an alternative method situated between kinetic and fluid ...equations for flows close to equilibrium but may suffer from closure breakdown and lead to unrealisable ...
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Convergence rate of an asymptotic preserving scheme for the diffusive limit of the p-system with damping
... entropy for hyperbolic systems of conservation laws was introduced in the pioneer works of DiPerna [ 10 ] and Dafermos [ 8 ...kinetic models to their hydrodynamic limit [ 14 , 33 ...result for ...
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Asymptotic high order mass-preserving schemes for a hyperbolic model of chemotaxis
... the asymptotic state is constant, the upwind scheme will be perfectly adapted, whereas for a non-constant asymptotic state, with a large second derivative, a new scheme has to be ...
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Accurate Asymptotic Preserving Boundary Conditions for Kinetic Equations on Cartesian Grids
... Angle for different pressure ratios calculated with Euler and BGK ...of Asymptotic Preserving schemes [14] has been introduced answering the need for numerical methods that automatically ...
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Study of an asymptotic preserving scheme for the quasi neutral Euler-Boltzmann model in the drift regime
... these models is however not straightforward and brings many other technical difficulties related to the interfaces ...called asymptotic preserving approach introduced by Jin [ 16 , 17 ] so as to be ...
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ASYMPTOTIC-PRESERVING SCHEME FOR THE FOKKER-PLANCK-LANDAU-MAXWELL SYSTEM IN THE QUASI-NEUTRAL REGIME.
... used for numerous applications in the context of strong magnetic fields ([13, 4]) for the gyro-fluid limit as well as in fluid mechanics for the hydrodynamic limit ([23, ...found for example ...
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On the Eulerian Large Eddy Simulation of disperse phase flows: an asymptotic preserving scheme for small Stokes number flows
... closure for the NDF proposed by Vie et ...particles for small to moderate Stokes number flows, given a LES model for the gaseous phase, and is representative of the generic difficulties of such ...to ...
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Asymptotic-preserving well-balanced scheme for the electronic M1 model in the diffusive limit: Particular cases
... moments models provide higher accuracy than fluid model because the veloc- ity modulus (denoted ζ in this work) is kept as a ...such models is performed only in angle (integration on the unit ...intermediate ...
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Diffusion limits of the Lorentz model: Asymptotic preserving schemes
... diffusive asymptotic. Let us mention, for instance, neutron transport, radiative transfer in the “optically thick limit” (see [1, 31, 32, 38, 39] and the references therein) and semiconductor ...
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ASYMPTOTIC-PRESERVING WELL-BALANCED SCHEME FOR THE ELECTRONIC M 1 MODEL IN THE DIFFUSIVE LIMIT: PARTICULAR CASES.
... moments models represent an alternative method situated between kinetic and fluid ...equations for flows close to equilibrium but may suffer from closure breakdown and lead to unrealisable ...
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Asymptotic-preserving methods for an anisotropic model of electrical potential in a tokamak
... One of the main challenges for this objective is to control the wall-plasma inter- actions. Indeed, the magnetic confinement is not perfect and the plasma is in contact with the wall. In a tokamak such as TORE ...
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Asymptotic preserving schemes on conical unstructured 2D meshes
... The new conical schemes obtained by adding a control point located on each mid edge (shoulder point) are strictly different from those of the original polygonal case, especially for the planar degenerate conical ...
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Asymptotic-Preserving scheme based on a Finite Volume/Particle-In-Cell coupling for Boltzmann- BGK-like equations in the diffusion scaling
... ε = 1. From the PIC point of view, our hybrid scheme can be seen as a δ f method (see [4] for example). We thus take the same advantages: the noise due to the prob- abilistic character of the particles ...
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Asymptotic preserving and time diminishing schemes for rarefied gas dynamic
... method for the BGK equation which enjoys the following properties: (i) its statistical noise is smaller than the one of standard Monte Carlo methods; (ii) it is asymptotically stable with respect to the Knudsen ...
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PCS, a privacy-preserving certification scheme
... (ABS for short) is a cryptographic primitive that enables users to sign data with fine-grained control over the required identifying information ...settings for ABS must include a Signature Trustee (ST ), ...
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