TY - JOUR
T1 - Numerical Simulation of Heat Transfer in GraduallyVarying Microchannel Heat Sink
AU - Pandey, Jyoti
AU - Zahid Ansari, Mohd
AU - Husain, Afzal
N1 - Funding Information:
This study was supported by SERB-DST grant to MZA (ECR/2015/000531). In addition, the authors acknowledge the support provided by Sultan Qaboos University, Muscat Oman.
Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2019/12/12
Y1 - 2019/12/12
N2 - Microchannel heat sink has broad relevance in microelectronics and optical devices. Study in this paper focuses on enhancing the cooling characteristics of microchannel heat sink used in such devices. Instead of conventional, rectangular or circular cross-section channel designs, this study uses microchannels with gradually varying cross-section along the length. Three channels geometries employing entirely diverging or converging designs as well as combined diverging-diverging design are studied. The cooling performance is ascertained by using nanofluid and DI water as coolants flowing at different Reynolds numbers by analysing thermal characteristics such as temperature variation and Nusselt number using commercial software ANSYS® Fluent. Study demonstrates that the nanofluid is more efficient for the heat sink application irrespective of the channel geometry.
AB - Microchannel heat sink has broad relevance in microelectronics and optical devices. Study in this paper focuses on enhancing the cooling characteristics of microchannel heat sink used in such devices. Instead of conventional, rectangular or circular cross-section channel designs, this study uses microchannels with gradually varying cross-section along the length. Three channels geometries employing entirely diverging or converging designs as well as combined diverging-diverging design are studied. The cooling performance is ascertained by using nanofluid and DI water as coolants flowing at different Reynolds numbers by analysing thermal characteristics such as temperature variation and Nusselt number using commercial software ANSYS® Fluent. Study demonstrates that the nanofluid is more efficient for the heat sink application irrespective of the channel geometry.
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U2 - 10.1088/1757-899X/691/1/012069
DO - 10.1088/1757-899X/691/1/012069
M3 - Conference article
AN - SCOPUS:85078205284
SN - 1757-8981
VL - 691
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012069
T2 - 2nd International Conference on Computational and Experimental Methods in Mechanical Engineering, ICCEMME 2019
Y2 - 3 May 2019 through 5 May 2019
ER -