Effect of Nozzle Inclination Angle on the Performance of Hybrid Jet Impingement Microchannel Heat Sink

Jyoti Pandey*, Mohd Zahid Ansari, Afzal Husain

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This study proposed an investigation on the performance of the jet impingement microchannel heat sink infused with cylindrical passive structures called pillars at the centerline of the channel. Array of nozzles were designed on the top of the microchannel, and pillars were designed at the center of two neighboring nozzles. Numerical modelling and simulation of conjugate solid–fluid heat transfer is performed by using finite volume-based commercial Ansys CFX software. Analysis was done for the effect of nozzle inclination angle on the hydraulic and thermal characteristics of the hybrid MCHS. Characteristic parameters such as heat transfer coefficient, thermal resistance, wall temperature, and pressure drop were observed for Reynolds number varied from 100 to 400 and nozzle impingement angle varied in between 30° and 90°. Improvement in heat transfer occurred with increasing the Re as well as inclination angle. Highest heat transfer coefficient and lowest bottom wall temperature are obtained for the 60° nozzle angle. Moreover, with increasing the inclination angle, pressure drop is reducing, but with increasing the Re, pressure drop is increasing.

Original languageEnglish
Title of host publicationRecent Advances in Manufacturing, Automation, Design and Energy Technologies - Proceedings from ICoFT 2020
EditorsSendhil Kumar Natarajan, Rajiv Prakash, K. Sankaranarayanasamy
PublisherSpringer Science and Business Media Deutschland GmbH
Number of pages10
ISBN (Print)9789811642210
Publication statusPublished - 2022
Externally publishedYes
Event1st International Conference on Future Technologies in Manufacturing, Automation, Design and Energy, ICoFT 2020 - Karaikal, India
Duration: Dec 28 2020Dec 30 2020

Publication series

NameLecture Notes in Mechanical Engineering
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364


Conference1st International Conference on Future Technologies in Manufacturing, Automation, Design and Energy, ICoFT 2020


  • Jet impingement
  • Microchannel heat sink
  • Thermal resistance

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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