Improvements in contact resolution of arbitrarily shaped bodies in CFD-DEM solver
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F22%3A43925781" target="_blank" >RIV/60461373:22340/22:43925781 - isvavai.cz</a>
Result on the web
<a href="https://sscheconference.sk/full_papers/396.pdf" target="_blank" >https://sscheconference.sk/full_papers/396.pdf</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Improvements in contact resolution of arbitrarily shaped bodies in CFD-DEM solver
Original language description
The automotive industry faces increasing demand for pollution reduction. Present methods and technologies developed for exhaust gas after treatment must be optimised and improved to meet rising demands. Such optimisation can be accomplished with a mathematical model describing the washcoating deposition of active catalytic material into a structure of catalytic filter. This process is currently described only with empirical models. The irregular solid particles of catalyst are dispersed in fluid in the form of slurry during washcoating. The fluid and solid phases are mutually affected by the solid particles coming into contact with each other and with the substrate. Such conditions require a detailed description of particles and fluid. This can be achieved with the coupling of CFD and DEM methods. However, the vast majority of currently available CFD-DEM solvers replace solid particles with spheres. Nevertheless, the real particles often cannot be simplified to spheres, and the irregularity of their shape must be considered. In this work, we present the extension to the custom-developed CFD-DEM solver designed to ensure accurate solution of particle collisions without a significant burden on computation time, the so-called virtual mesh. The principle of the proposed virtual mesh is to increase the resolution of particle collisions without any modifications to the computational mesh. The results of this approach are presented in a pilot study comparing the trajectory of particles and normal contact force for a plastic collision between two spheres. The test was carried out for the standard sphere DEM, dynamic mesh refinement and virtual mesh.
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
20302 - Applied mechanics
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
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings 48th International Conference of the Slovak Society of Chemical Engineering SSCHE 2022 and Membrane Conference PERMEA 2022
ISBN
978-80-8208-070-7
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
1-8
Publisher name
Slovenská technická univerzita v Bratislave, Fakulta chemickej a potravinárskej technológie (FCHPT STU)
Place of publication
Bratislava
Event location
Tatranske Matliare
Event date
May 23, 2022
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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