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ACRC Technical Report 118PDF


Title:Numerical Study of Flow and Heat Transfer in Wavy Passages
Author(s):Stone, K.M.; Vanka, S.P.
Subject(s):wavy fins
heat transfer augmentation
Abstract:Flow and heat transfer in a wavy passage are analyzed using an accurate numerical scheme that solves the two-dimensional unsteady flow and energy equations, for both developing and periodically fully-developed flow conditions. Developing flow calculations are presented for two different wavy channels, each consisting of 14 waves. It is observed that the flow is steady in part of the channel and unsteady in the remainder. As the Reynolds number is progressively increased, the unsteadiness is onset at a much earlier location, leading to increased heat transfer rates. Calculations for fully-developed flow were performed using periodic boundary conditions. The ensuing results reveal the effects of individually varying the height, amplitude, and wavelength of a selected wavy passage.
Issue Date:1997-05
Publisher:Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign.
Series/Report:Air Conditioning and Refrigeration Center TR-118
Genre:Technical Report
Sponsor:Air Conditioning and Refrigeration Project 65
Date Available in IDEALS:2009-04-24
Identifier in Online Catalog:4173767

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