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On the Correlation Between Vorticity Strength and Convective Heat Transfer

[+] Author Affiliations
Charbel Habchi

University of Nantes, Nantes; ADEME, Angers, France

Thierry Lemenand, Hassan Peerhossaini

University of Nantes, Nantes, France

Dominique Della Valle

University of Nantes; ONIRIS, Nantes, France

Paper No. IHTC14-22269, pp. 377-382; 6 pages
doi:10.1115/IHTC14-22269
From:
  • 2010 14th International Heat Transfer Conference
  • 2010 14th International Heat Transfer Conference, Volume 2
  • Washington, DC, USA, August 8–13, 2010
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 978-0-7918-4937-8 | eISBN: 978-0-7918-3879-2
  • Copyright © 2010 by ASME

abstract

Vorticity is an inherent feature of fluid flow and has an essential role in the convective heat and mass transfer. The present study aims at determining quantitatively the relationship between the streamwise vorticity flux Ω, and the convective heat transfer, characterized by Nusselt number Nu. Physical vortices are created by using a vorticity generator inserted on the wall of a heated straight channel. It is shown that the streamwise variations of Ω and Nu are related through a power law of the type Nuα(ΩC1 )β + C2 .

Copyright © 2010 by ASME
Topics: Vorticity , Convection

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