Parameter study of laminar flow and heat transfer in an interrupted microchannel heat sink with ribs

2021 ◽  
Author(s):  
wei Wang ◽  
Yong Shuai ◽  
Wentao Su ◽  
Bingxi Li ◽  
Yufei Tan ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Laminar Flow ◽  
Heat Sink ◽  
Parameter Study ◽  
Microchannel Heat Sink ◽  
Flow And Heat Transfer

scholarly journals Analysis of laminar flow and heat transfer in an interrupted microchannel heat sink with different shaped ribs

2019 ◽  
Vol 140 (3) ◽  
pp. 1259-1266 ◽  
Author(s):  
Wei Wang ◽  
Yongji Li ◽  
Yaning Zhang ◽  
Bingxi Li ◽  
Bengt Sundén
Keyword(s):  
Heat Transfer ◽  
Laminar Flow ◽  
Heat Sink ◽  
Numerical Study ◽  
Local Heat Transfer ◽  
Local Heat ◽  
Windward Side ◽  
Microchannel Heat Sink ◽  
Flow And Heat Transfer ◽  
Friction Performance

AbstractA 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.

scholarly journals Study on flow and heat transfer of liquid metal in a new top-slotted microchannel heat sink

2021 ◽  
Vol 621 ◽  
pp. 012054
Author(s):  
Zhiwei Chen ◽  
Peng Qian ◽  
Zizhen Huang ◽  
Chengyuan Luo ◽  
Minghou Liu
Keyword(s):  
Heat Transfer ◽  
Liquid Metal ◽  
Heat Sink ◽  
Microchannel Heat Sink ◽  
Flow And Heat Transfer

Optimization of Flow and Heat Transfer for a New Double-Layered Microchannel Heat Sink

2019 ◽  
Author(s):  
Huanling Liu ◽  
Bin Zhang
Keyword(s):  
Heat Transfer ◽  
Heat Sink ◽  
Heat Transfer Performance ◽  
Microchannel Heat Sink ◽  
Transfer Performance ◽  
Temperature Uniformity ◽  
Flow And Heat Transfer ◽  
Fluent Simulation ◽  
New Type ◽  
Improved Design

Abstract In this paper, we propose a new type of DL-MCHS to improve the substrate temperature uniformity of the microchannel heat sink, and conduct the optimization of the New DL-MCHS. The heat transfer and friction characteristics of the novel DL-MCHS are studied by numerical simulation. We compare the heat transfer performance the new DL-MCHS with the traditional TDL-MCHS (the DL-MCHS with truncated top channels λ = 0.38). The results prove the effectiveness of the improved design by FLUENT simulation. When the inlet velocity is kept constant and coolant is water, the heat transfer performance of the New DL-MCHS is higher than that of TDL-MCHS leading to an increase of the temperature uniformity. In order to achieving the best overall heat transfer performance, an optimization of New DL-MCHS is performed by GA (genetic algorithm).

Sign in / Sign up

Export Citation Format

Share Document