Title: A numerical simulation on the flow field and the heat transfer of water jet impingement on a solid block

Authors: Marimuthu Muthukannan; P. Rajesh Kanna; P. Ganesan; S. Jeyakumar

Addresses: Department of Mechanical Engineering, Kalasalingam University, Anand Nagar, Krishnankoil-626126, India ' Department of Mechanical Engineering, Velammal College of Engineering and Technology, Madurai, Tamilnadu-625009, India ' Department of Mechanical Engineering, Kalasalingam University, Anand Nagar, Krishnankoil-626126, India ' Department of Mechanical Engineering, Kalasalingam University, Anand Nagar, Krishnankoil-626126, India

Abstract: The flow field and heat transfer investigation of water jet impingement on a solid block is numerically analysed for various Reynolds numbers using commercial finite volume-based method. The purpose of this simulation is to investigate the effect of Reynolds number on flow field and heat transfer. In the present investigation, it is observed that the reattachment length increases with the increase of Reynolds number. The number and size of vortices increase with the increase of Reynolds number. The horizontal velocity profiles for various regions in computational domain are used to predict where the flow gets developed. The bottom wall Nusselt number grows when the Reynolds number increases. The peak Nusselt number occurs at the stagnation point of jet impingement.

Keywords: water jet; Reynolds number; aspect ratio; horizontal velocity profile; laminar flow.

DOI: 10.1504/IJCAET.2018.088831

International Journal of Computer Aided Engineering and Technology, 2018 Vol.10 No.1/2, pp.76 - 88

Received: 11 Jul 2015
Accepted: 02 Feb 2016

Published online: 12 Dec 2017 *

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