Hybrid fictitious domain-immersed boundary method in CFD-based topology optimization

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F22%3A00560839" target="_blank" >RIV/61388998:_____/22:00560839 - isvavai.cz</a>

Result on the web

<a href="http://www2.it.cas.cz/fm2015/im/admin/showfile/data/my/Papers/2022/17-TPFM2022.pdf" target="_blank" >http://www2.it.cas.cz/fm2015/im/admin/showfile/data/my/Papers/2022/17-TPFM2022.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/TPFM.2022.017" target="_blank" >10.14311/TPFM.2022.017</a>

Result language

angličtina

Original language name

Hybrid fictitious domain-immersed boundary method in CFD-based topology optimization

Original language description

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.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20302 - Applied mechanics

Project

<a href="/en/project/EF15_003%2F0000493" target="_blank" >EF15_003/0000493: Centre of Excellence for Nonlinear Dynamic Behaviour of Advanced Materials in Engineering</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Topical Problems of Fluid Mechanics 2022

ISBN

978-80-87012-77-2

ISSN

2336-5781

e-ISSN

—

Number of pages

8

Pages from-to

119-126

Publisher name

Ústav termomechaniky AV ČR, v. v. i.

Place of publication

Praha

Event location

Praha

Event date

Feb 16, 2022

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

001235659500017