Počet záznamů: 1
Towards unsteady Reynolds-averaged simulation of particle laden flows: Initial adjustments of a direct forcing immersed boundary method
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SYSNO ASEP 0603841 Druh ASEP A - Abstrakt Zařazení RIV Záznam nebyl označen do RIV Zařazení RIV Není vybrán druh dokumentu Název Towards unsteady Reynolds-averaged simulation of particle laden flows: Initial adjustments of a direct forcing immersed boundary method Tvůrce(i) Kubíčková, Lucie (UT-L) ORCID, RID
Studeník, Ondřej (UT-L) ORCID, RID
Kotouč Šourek, M. (CZ)
Isoz, Martin (UT-L) ORCID, RIDCelkový počet autorů 4 Poč.str. 2 s. Forma vydání Online - E Akce Multiphase Flow Conference & Short Course (MPF2024) /20./ Datum konání 11.11.2024 - 15.11.2024 Místo konání Drážďany Země DE - Německo Typ akce WRD Jazyk dok. eng - angličtina Klíč. slova unsteady RAS ; immersed boundary method ; CFD ; OpenFOAM Vědní obor RIV BA - Obecná matematika Obor OECD Applied mathematics CEP TN02000069 GA TA ČR - Technologická agentura ČR Institucionální podpora UT-L - RVO:61388998 Anotace Two-fluid or high-fidelity models are not truly usable for large scale applications with resolved particle shapes, e.g., simulations of rocks moving over a river bed. A viable alternative is to combine high-fidelity models with phenomenological turbulence modeling while preserving the sharp phase interfaces. In this contribution, we work with our custom high-fidelity model for particle-laden flows, the hybrid fictitious domain-immersed boundary and discrete element method (HFDIB-DEM). The DEM part is used to describe arbitrarily shaped particles and track their movement when affected by fluid. Next, the HFDIB method is a variant of a direct forcing immersed boundary method. The included turbulence models were two-equations models based on Reynolds-averaging (RAS) with Boussinesque hypothesis. In particular, we implemented the k-ω, k-ε, k-ω SST and realizable k-ε models. The new HFDIB-RAS approach was tested on several verification and validation cases with static phase interface so that the results were comparable with standard simulation approaches with geometry conforming meshes. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2025
Počet záznamů: 1