A Numerical study of the effect of interwall spacing on turbulent flow in a corrugated duct

S. Ergin, M. Ota*, H. Yamaguchi, M. Sakamoto

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The effect of varying interwall spacing on periodic fully developed turbulent flow in a corrugated duct is studied numerically. The k-s model is adopted for turbulent closure, and computation.s are performed for the ratio of the corrugation height to the interwall spacing ranging from 0.45 to 2.0, and for the corrugation angles of 30 and 45. The Reynolds number ranges from 500 to 7000 while the Prandtl number is 0.7. The numerical procedure and implementation of the k-E model is validated by comparing numerical results with the experimental data directly. I he result.s are also compared with the numerical values obtained by using a two-layer low-Reynolds number turbulence model. At a given Reynolds number. an increase in the interwall spacing increases the size of the separated region. On the other hand the friction factor first increases with the decreasing interwall spacing, reaches its maximum value, and then decreases.

Original languageEnglish
Title of host publicationHeat Transfer
Subtitle of host publicationVolume 2 � Heat Transfer in Turbulent Flows; Fundamentals of Convection Heat Transfer; Fundamentals of Natural Convection in Laminar and Turbulent Flows; Natural Circulation
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages47-54
Number of pages8
ISBN (Electronic)9780791815205
DOIs
Publication statusPublished - 1996
EventASME 1996 International Mechanical Engineering Congress and Exposition, IMECE 1996 - Atlanta, United States
Duration: 17 Nov 199622 Nov 1996

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume1996-AI

Conference

ConferenceASME 1996 International Mechanical Engineering Congress and Exposition, IMECE 1996
Country/TerritoryUnited States
CityAtlanta
Period17/11/9622/11/96

Bibliographical note

Publisher Copyright:
© 1996 American Society of Mechanical Engineers (ASME). All rights reserved.

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