Numerical Study of Flow and Heat Transfer in Wavy Passages

Stone, K.M.; Vanka, S.P.

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https://hdl.handle.net/2142/11600 Copy

Description

Title

Numerical Study of Flow and Heat Transfer in Wavy Passages

Author(s)

• Stone, K.M.
• Vanka, S.P.

Issue Date

1997-05

Keyword(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.

Publisher

Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign.

Series/Report Name or Number

Air Conditioning and Refrigeration Center TR-118

Type of Resource

text

Language

en

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http://hdl.handle.net/2142/11600

Sponsor(s)/Grant Number(s)

Air Conditioning and Refrigeration Project 65

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