A multispecies, multifluid model for laser–induced counterstreaming plasma simulations

Ghosh, Debojyoti; Chapman, T.; Berger, R. L.; Dimits, A. M.; Banks, Jeffrey W.

doi:10.1016/j.compfluid.2019.04.012

Cited by 15 publications

(3 citation statements)

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“…Numerical simulation of the interaction of two shear layers in double backward-facing steps was performed in Deng et al (2019). A multispecies, multifluid model for laser-induced counterstreaming plasma simulations was developed in Ghosh et al (2019). Rayleigh-Taylor instability-induced flows were simulated in Rahman and San (2019).…”

Section: Applicationsmentioning

confidence: 99%

Essentially non-oscillatory and weighted essentially non-oscillatory schemes

Shu¹

2020

Acta Numerica

113

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Essentially non-oscillatory (ENO) and weighted ENO (WENO) schemes were designed for solving hyperbolic and convection–diffusion equations with possibly discontinuous solutions or solutions with sharp gradient regions. The main idea of ENO and WENO schemes is actually an approximation procedure, aimed at achieving arbitrarily high-order accuracy in smooth regions and resolving shocks or other discontinuities sharply and in an essentially non-oscillatory fashion. Both finite volume and finite difference schemes have been designed using the ENO or WENO procedure, and these schemes are very popular in applications, most noticeably in computational fluid dynamics but also in other areas of computational physics and engineering. Since the main idea of the ENO and WENO schemes is an approximation procedure not directly related to partial differential equations (PDEs), ENO and WENO schemes also have non-PDE applications. In this paper we will survey the basic ideas behind ENO and WENO schemes, discuss their properties, and present examples of their applications to different types of PDEs as well as to non-PDE problems.

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Section: Applicationsmentioning

confidence: 99%

Essentially non-oscillatory and weighted essentially non-oscillatory schemes

Shu¹

2020

Acta Numerica

113

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“…The multi-species interpenetration problem has been traditionally treated by multi-fluid models in a 5-moment, Euler equation formalism [9,30,31]. That approach has received a renewed interest recently [32]. A multi-fluid capability has also recently been implemented [8] into the standard radiative hydrodynamics code lasnex [33].…”

Section: Introductionmentioning

confidence: 99%

An extended hydrodynamics model for inertial confinement fusion hohlraums

Larroche

2021

Preprint

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In some inertial confinement fusion hohlraum designs, the inside plasma is not sufficiently collisional to be satisfactorily described by the Euler equations implemented in hydrodynamic simulation codes, particularly in converging regions of the expanding plasma flow. To better treat that situation, this paper presents an extended hydrodynamics model including higher moments of the particle velocity distribution function, together with physically justified closure assumptions and relaxation terms. A preliminary one-dimensional numerical implementation of the model is shown to give satisfactory results in a test case involving a high-velocity collision of two plasma flows. Paths to extend that model to three dimensions as needed for an actual hohlraum geometry are briefly discussed.

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“…B2.5, UEDGE, and EDGE2D/U all use N-fluid models to track different ion species' densities and momenta independently; these codes assume that all ion species share a single temperature profile and their physical models for cross-field transport are anomalous rather than classical [16][17][18][19][20][21]. There has also been significant computational work using N-fluid models to simulate unmagnetized multiple-ion plasmas [22][23][24]. To the authors' knowledge, there is no established code designed to simulate classical N-fluid cross-field transport, including independent densities, velocities, and temperatures, for an arbitrary number of species.…”

Section: Introductionmentioning

confidence: 99%

MITNS: Multiple-Ion Transport Numerical Solver for Magnetized Plasmas

Kolmes,

Ochs,

Fisch

2020

Preprint

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A multispecies, multifluid model for laser–induced counterstreaming plasma simulations

Cited by 15 publications

References 50 publications

Essentially non-oscillatory and weighted essentially non-oscillatory schemes

Essentially non-oscillatory and weighted essentially non-oscillatory schemes

An extended hydrodynamics model for inertial confinement fusion hohlraums

MITNS: Multiple-Ion Transport Numerical Solver for Magnetized Plasmas

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