Simulating particle-laden flows: From immersed boundaries towards model order reduction
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F23%3A43928382" target="_blank" >RIV/60461373:22340/23:43928382 - isvavai.cz</a>
Result on the web
<a href="https://www.engmech.cz/im/proceedings/show_p/2023/27" target="_blank" >https://www.engmech.cz/im/proceedings/show_p/2023/27</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Simulating particle-laden flows: From immersed boundaries towards model order reduction
Original language description
Particle-laden flow is prevalent both in nature and in industry. Its appearance ranges from the transport 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.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10102 - Applied mathematics
Result continuities
Project
<a href="/en/project/GA22-12227S" target="_blank" >GA22-12227S: Computer-aided design of catalytic filters considering the impact of trapped particulate matter</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
29th International Conference Engineering Mechanics 2023
ISBN
978-80-87012-84-0
ISSN
1805-8248
e-ISSN
1805-8256
Number of pages
10
Pages from-to
27-36
Publisher name
Ústav termomechaniky AV ČR, v.v.i.
Place of publication
Praha
Event location
Milovy
Event date
May 9, 2023
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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