Numerical predictions of entropy generations for mixed convective flows in a vertical channel with transverse fin array

Chin-Hsiang Cheng, Wei Ping Ma, Wen Hsiung Huang

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

This study is concerned with local entropy generation of the laminar mixed-convective flow in a vertical channel with a series of transverse fins. These fins, placed on the hotter wall, provide more areas for heat-transfer but meanwhile cause a significant increase in local irreversibilities. Numerical solutions of the elliptic momentum and energy equations are carried out with the stream functoin-vorticity method. Distribution of local entropy generation is further predicted by solving the entropy generation equation based on the obtained velocity and temperature data. Results for various physical and geometric parameters are presented. Consequently, the geometric configuration of the finned channel with higher second-law efficiency is proposed.

Original languageEnglish
Pages (from-to)519-530
Number of pages12
JournalInternational Communications in Heat and Mass Transfer
Volume21
Issue number4
DOIs
Publication statusPublished - 1994 Jan 1

Fingerprint

convective flow
fins
Entropy
entropy
predictions
Vorticity
vorticity
Momentum
heat transfer
Heat transfer
momentum
causes
configurations
Temperature
temperature
energy

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Chemical Engineering(all)
  • Condensed Matter Physics

Cite this

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Numerical predictions of entropy generations for mixed convective flows in a vertical channel with transverse fin array. / Cheng, Chin-Hsiang; Ma, Wei Ping; Huang, Wen Hsiung.

In: International Communications in Heat and Mass Transfer, Vol. 21, No. 4, 01.01.1994, p. 519-530.

Research output: Contribution to journalArticle

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