Analysis of dynamic enhancement of natural convection cooling by a discrete vibrating plate

Document Type

Article

Publication Date

12-1-2006

Abstract

A dynamic means of locally enhancing laminar natural convection cooling in a vertical channel through the localized application of fluid oscillations is numerically investigated. The two-dimensional system considered for these purposes is a vertical channel with a small transversely oscillating plate placed near a constant heat flux channel wall. The flow and heat transfer in the system resulting from the combined effects of the natural convection and the oscillating plate were determined. The results indicate that for displacement amplitudes of at least one-third of the mean spacing and with dimensionless frequencies (Re/√Gr) of at least 2π, the local heat transfer coefficient can be enhanced by as much as 41%. © Springer-Verlag 2006.

Identifier

33750431415 (Scopus)

Publication Title

Heat and Mass Transfer Waerme Und Stoffuebertragung

External Full Text Location

https://doi.org/10.1007/s00231-006-0101-2

e-ISSN

14321181

ISSN

09477411

First Page

149

Last Page

163

Issue

2

Volume

43

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