Original title: Increasing Ejector Efficiency via Diffuser Shape Optimization
Authors: Kubíčková, Lucie ; Isoz, Martin ; Haidl, Jan
Document type: Papers
Conference/Event: Topical Problems of Fluid Mechanics, Praha (CZ), 20210217
Year: 2021
Language: eng
Abstract: 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.
Keywords: CFD; ejector; MOEA; OpenFOAM
Project no.: GC19-02288J (CEP), EF15_003/0000493
Funding provider: GA ČR, GA MŠk
Host item entry: Topical Problems of Fluid Mechanics, ISBN 978-80-87012-76-5, ISSN 2336-5781
Note: Související webová stránka: http://www2.it.cas.cz/fm/im/im/proceeding/2021/11

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0327414

Permalink: http://www.nusl.cz/ntk/nusl-508420


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers