guest ::
| Home > Conference materials > Papers > Hybrid fictitious domain-immersed boundary method in CFD-based topology optimization |
Original title:
Hybrid fictitious domain-immersed boundary method in CFD-based topology optimization
Authors: Kubíčková, Lucie ; Isoz, Martin
Document type: Papers
Conference/Event: Topical problems of fluid mechanics 2022, Praha (CZ), 20220216
Year: 2022
Language: eng
Abstract: Advances in technological development, especially in 3D printing, allow engineers to design components with almost arbitrary shape and connectivity. Consequently, more and more attention is being directed towards a highly-specialized application-driven component design based on topology optimization (TO). In the present work, we propose a methodology enabling TO of components in contact with flowing fluids. In particular, the optimization itself is based on multi-objective evolutionary algorithms (MOEAs) with the component geometry encoded using a binary representation. The optimization criteria are evaluated via computational fluid dynamics (CFD). The main novelty of the proposed TO framework lies in its robustness and effectiveness achieved by utilizing a single computational mesh for all the tested designs and projecting the specific components shapes onto it by the means of an immersed boundary method. The new methodology capabilities are illustrated on a shape optimization of a diffuser equipped as a part of an ejector. The optimization goal was to increase the ejector energy efficiency. The newly proposed methodology was able to identify a design by roughly 9 % more efficient than an alternative one found utilizing a previously published and less general optimization approach.
Keywords: CFD; HFDIB; OpenFOAM; topology optimization
Project no.: EF15_003/0000493
Funding provider: GA MŠk
Host item entry: Topical Problems of Fluid Mechanics 2022, ISBN 978-80-87012-77-2, ISSN 2336-5781
Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: http://www2.it.cas.cz/fm2015/im/admin/showfile/data/my/Papers/2022/17-TPFM2022.pdf
Original record: https://hdl.handle.net/11104/0334777
Permalink: http://www.nusl.cz/ntk/nusl-510653
The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers
Authors: Kubíčková, Lucie ; Isoz, Martin
Document type: Papers
Conference/Event: Topical problems of fluid mechanics 2022, Praha (CZ), 20220216
Year: 2022
Language: eng
Abstract: Advances in technological development, especially in 3D printing, allow engineers to design components with almost arbitrary shape and connectivity. Consequently, more and more attention is being directed towards a highly-specialized application-driven component design based on topology optimization (TO). In the present work, we propose a methodology enabling TO of components in contact with flowing fluids. In particular, the optimization itself is based on multi-objective evolutionary algorithms (MOEAs) with the component geometry encoded using a binary representation. The optimization criteria are evaluated via computational fluid dynamics (CFD). The main novelty of the proposed TO framework lies in its robustness and effectiveness achieved by utilizing a single computational mesh for all the tested designs and projecting the specific components shapes onto it by the means of an immersed boundary method. The new methodology capabilities are illustrated on a shape optimization of a diffuser equipped as a part of an ejector. The optimization goal was to increase the ejector energy efficiency. The newly proposed methodology was able to identify a design by roughly 9 % more efficient than an alternative one found utilizing a previously published and less general optimization approach.
Keywords: CFD; HFDIB; OpenFOAM; topology optimization
Project no.: EF15_003/0000493
Funding provider: GA MŠk
Host item entry: Topical Problems of Fluid Mechanics 2022, ISBN 978-80-87012-77-2, ISSN 2336-5781
Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: http://www2.it.cas.cz/fm2015/im/admin/showfile/data/my/Papers/2022/17-TPFM2022.pdf
Original record: https://hdl.handle.net/11104/0334777
Permalink: http://www.nusl.cz/ntk/nusl-510653
The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers
Record created 2022-10-23, last modified 2023-12-06