Augmenting natural convection in a vertical flow path through transverse vibrations of an adiabatic wall

Document Type

Article

Publication Date

1-1-2007

Abstract

Natural-convection enhancement methods may provide more efficient and effective, low-cost, reliable alternative cooling options for certain operating conditions. In this work, the introduction of locally applied oscillations is explored as a means of improving natural-convection cooling. A simple geometric system consisting of a vertically oriented flow path with one uniformly heated wall and one transversely oscillating, insulated wall is utilized. A finite-volume SIMPLER-based technique is developed to study the system in a transformed "fixed" domain. Analysis over a range of oscillation frequencies and displacements, flow channel length-to-width ratios, and heat rates allows for the examination of the characteristics of the resulting velocity and temperature fields under various operating conditions. The combination of the oscillations, the natural convection, the fluid inertia, and other flow drivers produced up to a 340% increase in the local heat transfer coefficient. © Taylor & Francis Group, LLC.

Identifier

34547661991 (Scopus)

Publication Title

Numerical Heat Transfer Part A Applications

External Full Text Location

https://doi.org/10.1080/10407780701301801

e-ISSN

15210634

ISSN

10407782

First Page

497

Last Page

530

Issue

6

Volume

52

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