Passive Control of Vortices in the Wake of a Bluff Body
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F24%3A00376147" target="_blank" >RIV/68407700:21220/24:00376147 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3390/fluids9060131" target="_blank" >https://doi.org/10.3390/fluids9060131</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/fluids9060131" target="_blank" >10.3390/fluids9060131</a>
Alternative languages
Result language
angličtina
Original language name
Passive Control of Vortices in the Wake of a Bluff Body
Original language description
Vortices belong to the most important phenomena in fluid dynamics and play an essential role in many engineering applications. They can act detrimentally by harnessing the flow energy and reducing the efficiency of an aerodynamic device, whereas in other cases, their presence can be exploited to achieve targeted flow conditions. The control of the vortex parameters is desirable in both cases. In this paper, we introduce an optimization strategy for the control of vortices in the wake of a bluff body. Flow modelling is based on RANS and DES computations, validated by experimental data. The algorithm for vortex identification and characterization is based on the triple decomposition of motion. It produces a quantitative measure of vortex strength which is used to define the objective function in the optimization procedure. It is shown how the shape of an aerodynamic device can be altered to achieve the desired characteristics of vortices in its wake. The studied case is closely related to flame holders for combustion applications, but the conceptual approach has a general applicability to vortex control.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
<a href="/en/project/EF16_019%2F0000826" target="_blank" >EF16_019/0000826: Center of Advanced Aerospace Technology</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Fluids (online)
ISSN
2311-5521
e-ISSN
2311-5521
Volume of the periodical
9
Issue of the periodical within the volume
6
Country of publishing house
CH - SWITZERLAND
Number of pages
16
Pages from-to
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UT code for WoS article
001256808500001
EID of the result in the Scopus database
2-s2.0-85196875740