scholarly journals Heat Transfer and Fluid Flow Investigations in PDMS Microchannel Heat Sinks Fabricated by Means of a Low-Cost 3D Printer

2020 ◽  
Author(s):  
Inês Maia ◽  
Cesar Rocha ◽  
Pedro Pontes ◽  
Vanessa Cardoso ◽  
João M. Miranda ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Low Cost ◽  
Heat Sinks ◽  
3D Printer ◽  
Microchannel Heat Sinks ◽  
Pdms Microchannel

scholarly journals Characteristics of heat transfer and fluid flow in microchannel heat sinks with rectangular grooves and different shaped ribs

2020 ◽  
Vol 59 (6) ◽  
pp. 4593-4609
Author(s):  
Qifeng Zhu ◽  
Kunpeng Chang ◽  
Junjie Chen ◽  
Xinmin Zhang ◽  
Huixue Xia ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Heat Sinks ◽  
Microchannel Heat Sinks

Single-Phase Flow and Heat Transport in Microchannel Heat Sinks

2003 ◽  
Author(s):  
Suresh V. Garimella ◽  
Vishal Singhal
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Single Phase ◽  
Heat Removal ◽  
Electronics Cooling ◽  
Heat Sinks ◽  
Flow And Heat Transfer ◽  
Microchannel Heat Sinks ◽  
Flow Through ◽  
Very High

Microchannel heat sinks are widely regarded as being amongst the most effective heat removal techniques from space-constrained electronic devices. However, the fluid flow and heat transfer in microchannels is not fully understood. The pumping requirements for flow through microchannels are also very high and none of the micropumps in the literature are truly suitable for this application. A wide-ranging research program on microchannel heat sinks and micropumps is underway in the Electronics Cooling Laboratory at Purdue University. This article provides an overview of the research being conducted to understand fluid flow and heat transfer in microchannels and to identify pumping requirements and suitable mechanisms for pumping in microchannels.

A Three-Dimensional Simulation Analysis of Fluid Flow and Heat Transfer in Microchannel Heat Sinks with Different Structures

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Jienan Shen ◽  
Xiuxiu Li ◽  
Yongsheng Zhu ◽  
Boya Zhang ◽  
Hang Guo ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Reynolds Number ◽  
Fluid Flow ◽  
Heat Sink ◽  
Simulation Analysis ◽  
Heat Sinks ◽  
Mixing Efficiency ◽  
Microchannel Heat Sink ◽  
Flow And Heat Transfer ◽  
Microchannel Heat Sinks

Abstract Numerical studies have been performed to analyze the fluid flow and heat transfer characteristics of nine microchannel heat sinks (MCHS) with different shapes and different arrangements of the ribs and cavities on the sidewalls, using three common shapes (square, triangle, and circular) of ribs or cavities as the basic structure in this work. The boundary conditions, governing equations, friction factor (f), Nusselt number (Nu), and performance evaluation criteria (ξ) were considered to determine which design was the best in terms of the heat transfer, the pressure drop, and the overall performance. It was observed that no matter how the circular ribs or cavities were arranged, its heat sink performance was better than the other two shapes for Reynolds number of 200–1000. Therefore, circular ribs or cavities can be considered as the best structure to improve the performance of MCHS. In addition, the heat sink performance of the microchannel heat sink with symmetrical circular ribs (MCHS-SCR) was improved by 31.2 % compared with the conventional microchannel heat sink at Re = 667. This was because in addition to the formation of transverse vortices in the channel, four symmetrical and reverse longitudinal vortices are formed to improve the mixing efficiency of the central fluid (low temperature) and the near-wall fluid (high temperature). Then, as the Reynolds number increases, the heat sink performance of MCHS-SCR dropped sharply. The heat sink performance of microchannel heat sinks with staggered ribs and cavities (MCHS-SCRC, MCHS-STRC, and MCHS-SSRC) exceeded that of MCHS-SCR. This indicated that the microchannel heat sink with staggered ribs and cavities was more suitable for high Reynolds number (Re > 800).

Fluid flow and heat transfer characteristics of microchannel heat sinks with different groove shapes

2020 ◽  
pp. 106721
Author(s):  
Qifeng Zhu ◽  
Huixue Xia ◽  
Junjie Chen ◽  
Xinmin Zhang ◽  
Kunpeng Chang ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Heat Sinks ◽  
Heat Transfer Characteristics ◽  
Transfer Characteristics ◽  
Flow And Heat Transfer ◽  
Microchannel Heat Sinks

Fluid Flow and Heat Transfer in Microchannel Heat Sinks: Modelling review and recent progress

2022 ◽  
pp. 101203
Author(s):  
Jie Gao ◽  
Zhuohuan Hu ◽  
Qiguo Yang ◽  
Xing Liang ◽  
Hongwei Wu
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Recent Progress ◽  
Heat Sinks ◽  
Flow And Heat Transfer ◽  
Microchannel Heat Sinks
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