Numerical investigation of semi-empirical relation representing standard deviation in Nusselt profile due to water jet impingement

Khan, Sher Afghan and Siddique, Umair M and Ansari, Emaad and Patil, Rajesh (2020) Numerical investigation of semi-empirical relation representing standard deviation in Nusselt profile due to water jet impingement. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 65 (1). pp. 42-53. ISSN 2289-7879

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Abstract

Use of water jets in material processing industries is finding pace. Water jets are used for cooling of materials due to its high convective heat transfer coefficient. Nusselt number is the parameter used for studying the heat transfer rate through water jet impingement. Simulations are performed and Nusselt magnitudes are plotted for Reynolds number 2000, 2200, 2400, 2600, 2800, 3000, 3200 and 3400 at constant nondimensional nozzle target spacing (z/d) 4. Also, Nusselt distribution is obtained at z/d = 1, 2, 3, 4, 5, 6, 7 and 8 at constant Reynolds value of 750. The standard deviation (STDEV) of Nusselt magnitude is arranged according to constant C (C = Re/ (z/d) for regression analysis. The semi-empirical relation representing standard deviation (STDEV) in terms of C is found out to be = 14.751 × (C) . Also, SST + Gamma-Theta turbulence model is found to predict accurate results. © 2020 Penerbit Akademia Baru.

Item Type:	Article (Journal)
Additional Information:	7395/84081
Uncontrolled Keywords:	Nusselt number; Reynolds number; nozzle-target spacing; standard deviation
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL1 Motor vehicles
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Prof. Dr. Sher Afghan Khan
Date Deposited:	08 Dec 2020 12:59
Last Modified:	19 Jan 2021 08:35
URI:	http://irep.iium.edu.my/id/eprint/84081

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