Název:
Numerical evaluation of mass-diffusive compressible fluids flows models
Autoři:
Bodnár, Tomáš ; Fraunié, P. Typ dokumentu: Příspěvky z konference Konference/Akce: Topical Problems of Fluid Mechanics 2024, Prague (CZ), 20240221
Rok:
2024
Jazyk:
eng
Abstrakt: This contribution presents first numerical tests of some recently published alternative models for solution of viscous compressible and nearly incompressible models. All models are solved by high resolution compact finite difference scheme with strong stability preserving RungeKutta time stepping. The two simple but challenging computational test cases are presented, based on the double-periodic shear layer and the Kelvin-Helmholtz instability. The obtained time-dependent flow fields are showing pronounced shear and vorticity layers being resolved by the standard as well as by the new mass-diffusive modified models. The preliminary results show that the new models are viable alternative to the well established classical models.
Klíčová slova:
compact finite-difference; compressible Navier-Stokes; mass diffusion; nearly incompressible flow Číslo projektu: GA22-01591S (CEP), AP2101 Poskytovatel projektu: GA ČR, AV ČR Zdrojový dokument: Topical Problems of Fluid Mechanics, ISBN 978-80-87012-88-8, ISSN 2336-5781 Poznámka: Související webová stránka: https://doi.org/10.14311/TPFM.2024.004
Instituce: Matematický ústav AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný v repozitáři Akademie věd. Původní záznam: https://hdl.handle.net/11104/0351290