Experimental and computational study of turbulent heat transfer characteristics in serrated channel flow

Shinnosuke Obi, K. P. Kobayashi, A. M. Bethancourt, H. Yoshida, T. Asano, R. Echigo

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A two-dimensional (2-D) channel with a serrated wall is proposed as a device for heat transfer augmentation. Measurements of the flow velocity in the whole field as well as of the heat transfer coefficient along the wall are undertaken for two different channel heights. The same flow fields are calculated using a second-moment closure and the standard k-e model. The flow field containing successive separation and reattachment partly resembles the conventional backward-facing step flow, although the extremely high turbulence level found in the present configuration indicates a promising performance of the serrated channel as a heat transfer promoter.

Original languageEnglish
Pages (from-to)398-404
Number of pages7
JournalInternational Journal of Heat and Fluid Flow
Volume16
Issue number5
DOIs
Publication statusPublished - 1995

Fingerprint

turbulent heat transfer
channel flow
Channel flow
Flow fields
Heat transfer
flow distribution
heat transfer
Flow velocity
Heat transfer coefficients
backward facing steps
Turbulence
heat transfer coefficients
closures
attachment
flow velocity
turbulence
moments
augmentation
configurations

Keywords

  • application of turbulence models
  • heat transfer augmentation
  • laser Doppler anenometry measurements
  • separation and impingement
  • turbulent flows

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Mechanical Engineering
  • Condensed Matter Physics

Cite this

Experimental and computational study of turbulent heat transfer characteristics in serrated channel flow. / Obi, Shinnosuke; Kobayashi, K. P.; Bethancourt, A. M.; Yoshida, H.; Asano, T.; Echigo, R.

In: International Journal of Heat and Fluid Flow, Vol. 16, No. 5, 1995, p. 398-404.

Research output: Contribution to journalArticle

Obi, Shinnosuke ; Kobayashi, K. P. ; Bethancourt, A. M. ; Yoshida, H. ; Asano, T. ; Echigo, R. / Experimental and computational study of turbulent heat transfer characteristics in serrated channel flow. In: International Journal of Heat and Fluid Flow. 1995 ; Vol. 16, No. 5. pp. 398-404.
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AU - Echigo, R.

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