Analysis of laminar flow and heat transfer in an interrupted microchannel heat sink with different shaped ribs
(2019) In Journal of Thermal Analysis and Calorimetry- Abstract
A numerical study was conducted to investigate the mechanism of laminar flow and heat transfer enhancement in an interrupted microchannel heat sink (IMCHS) with different shaped ribs at Reynolds number ranging from 100 to 900. The global flow features, heat transfer and friction for IMCHS with no ribs, rectangle ribs, triangle ribs and trapezoid ribs are detailed compared. The results show that the local heat transfer and friction performance of IMCHS with ribs show significant increase at the windward side of the ribs. Additionally, the smaller the chamfer of ribs, the larger average heat transfer and friction performance. For IMCHS with rectangle ribs, the maximum increment of Nu and f can reach to 1.81 and 2.59, respectively.... (More)
A numerical study was conducted to investigate the mechanism of laminar flow and heat transfer enhancement in an interrupted microchannel heat sink (IMCHS) with different shaped ribs at Reynolds number ranging from 100 to 900. The global flow features, heat transfer and friction for IMCHS with no ribs, rectangle ribs, triangle ribs and trapezoid ribs are detailed compared. The results show that the local heat transfer and friction performance of IMCHS with ribs show significant increase at the windward side of the ribs. Additionally, the smaller the chamfer of ribs, the larger average heat transfer and friction performance. For IMCHS with rectangle ribs, the maximum increment of Nu and f can reach to 1.81 and 2.59, respectively. Concerning the overall heat transfer performance (PEC), the trapezoid ribs show the best behavior with PEC = 1.65–1.38 at Re = 100–900.
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- author
- Wang, Wei LU ; Li, Yongji ; Zhang, Yaning ; Li, Bingxi and Sundén, Bengt LU
- organization
- publishing date
- 2019-12-18
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Different rib shapes, Interrupted microchannel heat sink, Numerical simulation, Overall heat transfer performance
- in
- Journal of Thermal Analysis and Calorimetry
- publisher
- Akademiai Kiado
- external identifiers
-
- scopus:85076914584
- ISSN
- 1388-6150
- DOI
- 10.1007/s10973-019-09156-x
- language
- English
- LU publication?
- yes
- id
- 1720b528-cb39-4370-995e-15493f8e66cd
- date added to LUP
- 2020-01-09 14:38:56
- date last changed
- 2022-04-18 19:44:03
@article{1720b528-cb39-4370-995e-15493f8e66cd,
abstract = {{<p>A numerical study was conducted to investigate the mechanism of laminar flow and heat transfer enhancement in an interrupted microchannel heat sink (IMCHS) with different shaped ribs at Reynolds number ranging from 100 to 900. The global flow features, heat transfer and friction for IMCHS with no ribs, rectangle ribs, triangle ribs and trapezoid ribs are detailed compared. The results show that the local heat transfer and friction performance of IMCHS with ribs show significant increase at the windward side of the ribs. Additionally, the smaller the chamfer of ribs, the larger average heat transfer and friction performance. For IMCHS with rectangle ribs, the maximum increment of Nu and f can reach to 1.81 and 2.59, respectively. Concerning the overall heat transfer performance (PEC), the trapezoid ribs show the best behavior with PEC = 1.65–1.38 at Re = 100–900.</p>}},
author = {{Wang, Wei and Li, Yongji and Zhang, Yaning and Li, Bingxi and Sundén, Bengt}},
issn = {{1388-6150}},
keywords = {{Different rib shapes; Interrupted microchannel heat sink; Numerical simulation; Overall heat transfer performance}},
language = {{eng}},
month = {{12}},
publisher = {{Akademiai Kiado}},
series = {{Journal of Thermal Analysis and Calorimetry}},
title = {{Analysis of laminar flow and heat transfer in an interrupted microchannel heat sink with different shaped ribs}},
url = {{http://dx.doi.org/10.1007/s10973-019-09156-x}},
doi = {{10.1007/s10973-019-09156-x}},
year = {{2019}},
}