An experimental investigation of heat transfer and friction in a ribbed square channel

S. W. Ahn; H. K. Kang; A. B.K. Putra; D. H. Lee

doi:10.1243/09544089JPME148

An experimental investigation of heat transfer and friction in a ribbed square channel

S. W. Ahn^*
, H. K. Kang
, A. B.K. Putra
, D. H. Lee

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The heat transfer and friction characteristics of a fully developed turbulent air flow in a square channel with 45° inclined ribs on one, two, or four walls were experimentally investigated. Tests were performed for Reynolds numbers (Re) ranging from 7600 to 24 900, a pitch-to-rib-height ratio (P/e) of 8.0, and a rib-height-to-channel hydraulic diameter ratio (e/D_h) of 0.0667. Either two opposite walls or all four walls in the channel were heated.

Original language	English
Pages (from-to)	219-223
Number of pages	5
Journal	Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering
Volume	221
Issue number	4
DOIs	https://doi.org/10.1243/09544089JPME148
Publication status	Published - Nov 2007
Externally published	Yes

Keywords

Friction roughness function
Heat transfer roughness function
Ribbed square channel
Variable number of ribbed walls

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10.1243/09544089JPME148

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title = "An experimental investigation of heat transfer and friction in a ribbed square channel",

abstract = "The heat transfer and friction characteristics of a fully developed turbulent air flow in a square channel with 45° inclined ribs on one, two, or four walls were experimentally investigated. Tests were performed for Reynolds numbers (Re) ranging from 7600 to 24 900, a pitch-to-rib-height ratio (P/e) of 8.0, and a rib-height-to-channel hydraulic diameter ratio (e/Dh) of 0.0667. Either two opposite walls or all four walls in the channel were heated.",

keywords = "Friction roughness function, Heat transfer roughness function, Ribbed square channel, Variable number of ribbed walls",

author = "Ahn, \{S. W.\} and Kang, \{H. K.\} and Putra, \{A. B.K.\} and Lee, \{D. H.\}",

year = "2007",

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doi = "10.1243/09544089JPME148",

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AU - Ahn, S. W.

AU - Kang, H. K.

AU - Putra, A. B.K.

AU - Lee, D. H.

PY - 2007/11

Y1 - 2007/11

N2 - The heat transfer and friction characteristics of a fully developed turbulent air flow in a square channel with 45° inclined ribs on one, two, or four walls were experimentally investigated. Tests were performed for Reynolds numbers (Re) ranging from 7600 to 24 900, a pitch-to-rib-height ratio (P/e) of 8.0, and a rib-height-to-channel hydraulic diameter ratio (e/Dh) of 0.0667. Either two opposite walls or all four walls in the channel were heated.

AB - The heat transfer and friction characteristics of a fully developed turbulent air flow in a square channel with 45° inclined ribs on one, two, or four walls were experimentally investigated. Tests were performed for Reynolds numbers (Re) ranging from 7600 to 24 900, a pitch-to-rib-height ratio (P/e) of 8.0, and a rib-height-to-channel hydraulic diameter ratio (e/Dh) of 0.0667. Either two opposite walls or all four walls in the channel were heated.

KW - Friction roughness function

KW - Heat transfer roughness function

KW - Ribbed square channel

KW - Variable number of ribbed walls

UR - https://www.scopus.com/pages/publications/36849014785

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DO - 10.1243/09544089JPME148

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JO - Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering

JF - Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering

IS - 4

ER -

An experimental investigation of heat transfer and friction in a ribbed square channel

Abstract

Keywords

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