Active heat transfer and flow control over a cylinder by rotary oscillations

Egor Palkin, Rustam Mullyadzhanov, Muhamed Hadziabdic, Kemal Hanjalic

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

The paper provides a brief overview of recent computational studies of flow and heat transfer control by rotary oscillations of an infinite circular cylinder at a relatively broad set of imposed frequencies and amplitudes [1, 2]. A study for a previously unreachable high subcritical Reynolds number Re = 1.4 × 105 showed that the efficiency of this control method increases with Re concerning the issue of drag and lift reduction. High-frequency oscillations even lead to around 90 % reduction of the drag. However, the benefits for heat transfer enhancement is not that obvious as the bulk Nusselt number shows only small variations. At the same time its angular distribution around the cylinder becomes much more homogeneous due to oscillations which practically can prevent local overheats.

Original languageEnglish
Title of host publicationInternational Conference on the Methods of Aerophysical Research, ICMAR 2020
EditorsVasily M. Fomin, Alexander Shiplyuk
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735440999
DOIs
Publication statusPublished - 24 May 2021
Event20th International Conference on the Methods of Aerophysical Research, ICMAR 2020 - Akademgorodok, Novosibirsk, Russian Federation
Duration: 1 Nov 20207 Nov 2020

Publication series

NameAIP Conference Proceedings
Volume2351
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference20th International Conference on the Methods of Aerophysical Research, ICMAR 2020
CountryRussian Federation
CityAkademgorodok, Novosibirsk
Period01.11.202007.11.2020

OECD FOS+WOS

  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY

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