Název:
Increasing Ejector Efficiency via Diffuser Shape Optimization
Autoři:
Kubíčková, Lucie ; Isoz, Martin ; Haidl, Jan Typ dokumentu: Příspěvky z konference Konference/Akce: Topical Problems of Fluid Mechanics, Praha (CZ), 20210217
Rok:
2021
Jazyk:
eng
Abstrakt: An ejector is a technologically simple and yet wide-application fluid machine. While it has favorable characteristics for a signifficant number of technological processes, its main downside is probably its high operational energy demands. The present paper is an initial result of an ongoing research aimed at improving energy e ciency of the ejector via optimization of its geometry. In the paper, we focus mostly on presenting a general multi-objective optimization framework usable for an ejector shape optimization. The approach applicability is illustrated on a simpli ed problem comprising only a single phase flow in an ejector mixing tube and diffuser. Nevertheless, the achieved simulation and optimization results are validated against experimental data. The proposed optimization method itself is based on multi-objective evolutionary algorithms (MOEAs) combined with computational fluid dynamics (CFD) for evaluation of the vector-valued objective function.
Klíčová slova:
CFD; ejector; MOEA; OpenFOAM Číslo projektu: GC19-02288J (CEP), EF15_003/0000493 Poskytovatel projektu: GA ČR, GA MŠk Zdrojový dokument: Topical Problems of Fluid Mechanics, ISBN 978-80-87012-76-5, ISSN 2336-5781 Poznámka: Související webová stránka: http://www2.it.cas.cz/fm/im/im/proceeding/2021/11
Instituce: Ústav termomechaniky AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0327414