Numerical Study of Developing Flow and Heat Transfer in Wavy Passages

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

Permalink

https://hdl.handle.net/2142/11583 Copy

Description

Title

Numerical Study of Developing Flow and Heat Transfer in Wavy Passages

Author(s)

• Stone, K.M.
• Vanka, S.P.

Issue Date

1997-02

Keyword(s)

• wavy fins
• heat transfer augmentation

Abstract

Developing flow and heat transfer in a wavy passage are analyzed using an accurate numerical scheme that solves the unsteady flow and energy equations. Calculations are presented for two different wavy channels, each consisting of 14 waves. Time-dependent simulations have been performed for several systematically varied Reynolds numbers. It is observed that the flow is steady in part of the channel and unsteady in the rest of the channel. As the Reynolds number is progressively increased, the unsteadiness is onset at a much earlier location, leading to increased heat transfer rates. Varying the channel spacing alters the heat transfer and pressure drop characteristics, as well as the transition Reynolds numbers.

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-113

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/11583

Sponsor(s)/Grant Number(s)

Air Conditioning and Refrigeration Project 65

Owning Collections