Cell-centered Lagrangian Lax-Wendroff HLL Hybrid Scheme on Unstructured Meshes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F21%3A00347061" target="_blank" >RIV/68407700:21340/21:00347061 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.14311/AP.2021.61.0068" target="_blank" >https://doi.org/10.14311/AP.2021.61.0068</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14311/AP.2021.61.0068" target="_blank" >10.14311/AP.2021.61.0068</a>

Result language
angličtina
Original language name
Cell-centered Lagrangian Lax-Wendroff HLL Hybrid Scheme on Unstructured Meshes
Original language description
We have recently introduced a new cell-centered Lax-Wendroff HLL hybrid scheme for Lagrangian hydrodynamics [Fridrich et al. J. Comp. Phys. 326 (2016) 878-892] with results presented only on logical rectangular quadrilateral meshes. In this study we present an improved version on unstructured meshes, including uniform triangular and hexagonal meshes and non-uniform triangular and polygonal meshes. The performance of the scheme is verified on Noh and Sedov problems and its second-order convergence is verified on a smooth expansion test. Finally the choice of the scalar parameter controlling the amount of added artificial dissipation is studied.
Czech name
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Czech description
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Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
10102 - Applied mathematics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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