About: Staggered Lagrangian discretization based on cell-centered Riemann solver and associated hydrodynamics scheme

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The aim of this work is to develop a general formalism to derive staggered discretizations for Lagrangian hydrodynamics on two-dimensional unstructured grids. To this end, we make use of the compatible discretization that has been initially introduced by Caramana et al. Namely, momentum equation is discretized by means of subcell forces and specific internal energy equation is obtained using total energy conservation. The main contribution of this work lies in the fact that the subcell force is derived invoking Galilean invariance and thermodynamic consistency. The cell-centered velocity - a supplementary degree of freedom - is solved by means of a cell-centered approximate Riemann solver. Numerical tests are presented in order to assess the efficiency of this approach. The aim of this work is to develop a general formalism to derive staggered discretizations for Lagrangian hydrodynamics on two-dimensional unstructured grids. To this end, we make use of the compatible discretization that has been initially introduced by Caramana et al. Namely, momentum equation is discretized by means of subcell forces and specific internal energy equation is obtained using total energy conservation. The main contribution of this work lies in the fact that the subcell force is derived invoking Galilean invariance and thermodynamic consistency. The cell-centered velocity - a supplementary degree of freedom - is solved by means of a cell-centered approximate Riemann solver. Numerical tests are presented in order to assess the efficiency of this approach. (en)
Title	Staggered Lagrangian discretization based on cell-centered Riemann solver and associated hydrodynamics scheme Staggered Lagrangian discretization based on cell-centered Riemann solver and associated hydrodynamics scheme (en)
skos:prefLabel	Staggered Lagrangian discretization based on cell-centered Riemann solver and associated hydrodynamics scheme Staggered Lagrangian discretization based on cell-centered Riemann solver and associated hydrodynamics scheme (en)
skos:notation	RIV/68407700:21340/11:00171782!RIV12-MSM-21340___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GAP205/10/0814), P(LC528), P(MEB021020), Z(MSM6840770010), Z(MSM6840770022)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Váchal, Pavel
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta jaderná a fyzikálně inženýrská
http://linked.open...dnocenehoVysledku	231907
http://linked.open...ai/riv/idVysledku	RIV/68407700:21340/11:00171782
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Lagrangian scheme; Riemann solver; artificial viscosity; hydrodynamics; compressible flow (en)
http://linked.open.../riv/klicoveSlovo	Lagrangian scheme Riemann solver artificial viscosity hydrodynamics compressible flow
http://linked.open...odStatuVydavatele	CN - Čínská lidová republika
http://linked.open...ontrolniKodProRIV	[EDCD906848FA]
http://linked.open...i/riv/nazevZdroje	Communications in Computational Physics
http://linked.open...in/vavai/riv/obor	BA
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Centre of Laser Plasma Improving ALE: analysis of Lagrangian schemes, mesh quality, smoothing and regularization Laser-produced plasma-wall interaction
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	10
http://linked.open...iv/tvurceVysledku	Maire, P.-H. Váchal, Pavel Loubere, R.
http://linked.open...ain/vavai/riv/wos	000298764000010
http://linked.open...n/vavai/riv/zamer	Aplikovaná matematika v technických a fyzikálních vědách Laserové systémy, záření a moderní optické aplikace
issn	1815-2406
number of pages	39 (xsd:int)
http://bibframe.org/vocab/doi	10.4208/cicp.170310.251110a
http://localhost/t...ganizacniJednotka	21340

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