Optimal design of angled rib turbulators in a cooling channel

Kyung Min Kim; Hyun Lee; Beom Seok Kim; Sangwoo Shin; Dong Hyun Lee; Hyung Hee Cho

doi:10.1007/s00231-009-0536-3

Optimal design of angled rib turbulators in a cooling channel

Kyung Min Kim, Hyun Lee, Beom Seok Kim, Sangwoo Shin, Dong Hyun Lee, Hyung Hee Cho

Department of Mechanical Engineering

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

29 Citations (Scopus)

Abstract

In the present study, an optimal design for enhancement of heat transfer and thermal performance for a stationary channel with angled rib turbulators was investigated to find the most suitable rib geometry. Among various design parameters, two design variables, rib angle of attack (α) and pitch-to-rib height (p/e), were chosen. The ranges of two design variables were set as 30° ≤ α ≤ 80° and 3.0 ≤ p/e ≤ 15.0. Approximations for design of the best rib turbulators were obtained using the advanced response surface method with functional variables. The second-order response surfaces (or correlations) within the ranges of two design variables were completed by this method. As for the optimized results, maximum averaged heat transfer value was obtained at α = 53.31° and p/e = 6.50, while the highest thermal performance value was presented at α = 54.67° and p/e = 6.80.

Original language	English
Pages (from-to)	1617-1625
Number of pages	9
Journal	Heat and Mass Transfer/Waerme- und Stoffuebertragung
Volume	45
Issue number	12
DOIs	https://doi.org/10.1007/s00231-009-0536-3
Publication status	Published - 2009 Oct

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Fluid Flow and Transfer Processes

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AU - Cho, Hyung Hee

PY - 2009/10

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N2 - In the present study, an optimal design for enhancement of heat transfer and thermal performance for a stationary channel with angled rib turbulators was investigated to find the most suitable rib geometry. Among various design parameters, two design variables, rib angle of attack (α) and pitch-to-rib height (p/e), were chosen. The ranges of two design variables were set as 30° ≤ α ≤ 80° and 3.0 ≤ p/e ≤ 15.0. Approximations for design of the best rib turbulators were obtained using the advanced response surface method with functional variables. The second-order response surfaces (or correlations) within the ranges of two design variables were completed by this method. As for the optimized results, maximum averaged heat transfer value was obtained at α = 53.31° and p/e = 6.50, while the highest thermal performance value was presented at α = 54.67° and p/e = 6.80.

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Optimal design of angled rib turbulators in a cooling channel

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