Počet záznamů: 1
Simulating particle-laden flows: from immersed boundaries towards model order reduction
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SYSNO ASEP 0571970 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV Záznam nebyl označen do RIV Název Simulating particle-laden flows: from immersed boundaries towards model order reduction Tvůrce(i) Isoz, Martin (UT-L) ORCID, RID
Kubíčková, Lucie (UT-L) ORCID, RID
Kotouč Šourek, M. (CZ)
Studeník, Ondřej (UT-L) ORCID, RID
Kovárnová, A. (CZ)Celkový počet autorů 5 Zdroj.dok. Engineering Mechanics 2023 : 29th International Conference, 29. - Prague : Institute of Thermomechanics of the Czech Academy of Sciences, 2023 / Radolf V. ; Zolotarev I. - ISSN 1805-8248 - ISBN 978-80-87012-84-0 Rozsah stran s. 27-36 Poč.str. 10 s. Forma vydání Tištěná - P Akce INTERNATIONAL CONFERENCE - ENGINEERING MECHANICS 2023 /29/. Datum konání 09.05.2023 - 11.05.2023 Místo konání Milovy Země CZ - Česká republika Typ akce WRD Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova particle-laden flow ; CFD-DEM ; arbitrarily-shaped particles ; finite volume method Vědní obor RIV BK - Mechanika tekutin Obor OECD Applied mechanics Institucionální podpora UT-L - RVO:61388998 DOI https://doi.org/10.21495/em2023-27 Anotace Particle-laden flow is prevalent both in nature and in industry. Its appearance ranges from the trans-port of riverbed sediments towards the magma flow, from the deposition of catalytic material inside particulate matter filters in automotive exhaust gas aftertreatment towards the slurry transport in dredging operations. In this contribution, we focus on the particle-resolved direct numerical simulation (PR-DNS) of the particle-laden flow. Such a simulation combines the standard Eulerian approach to computational fluid dynamics (CFD) with inclusion of particles via a variant of the immersed boundary method (IBM) and tracking of the particles movement using a discrete element method (DEM). Provided the used DEM allows for collisions of arbitrarily shaped particles, PR-DNS is based (almost) entirely on first principles, and as such it is a truly high-fidelity model. The downside of PR-DNS is its immense computational cost. In this work, we focus on three possibilities of alleviating the computational cost of PR-DNS: (i) replacing PR-DNS by PR-LES or PR-RANS, while the latter requires combining IBM with wall functions, (ii) improving efficiency of DEM contact solution via adaptively refined virtual mesh, and (iii) developing a method of model order reduction specifically tailored to PR-DNS of particle-laden flows. 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 2024 Elektronická adresa https://www.engmech.cz/improc/2023/027.pdf
Počet záznamů: 1