Natural convection enhancement by a discrete vibrating plate and a cross-flow opening: A numerical investigation

Document Type

Article

Publication Date

6-1-2011

Abstract

In this study, a unique combination of a vibrating plate and a cross-flow passage is proposed as a means of enhancing natural convection cooling. The enhancement potential was estimated based on numerical studies involving a representative model which includes a short, transversely oscillating plate, placed over a transverse cross-flow opening in a uniformly heated vertical channel wall dividing two adjacent vertical channels. The resulting velocity and temperature fields are analyzed, with the focus on the local thermal effects near the opening. The simulation indicates up to a 50% enhancement in the local heat transfer coefficient for vibrating plate amplitudes of at least 30% of the mean clearance space and frequencies of over 82 rad/s. © 2011 Springer-Verlag.

Identifier

79956123249 (Scopus)

Publication Title

Heat and Mass Transfer Waerme Und Stoffuebertragung

External Full Text Location

https://doi.org/10.1007/s00231-010-0755-7

e-ISSN

14321181

ISSN

09477411

First Page

655

Last Page

677

Issue

6

Volume

47

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