Numerical investigation of semiempirical relations representing the local Nusselt number magnitude of a pin fin heat sink

Heat transfer augmentation study using air jet impingement has recently attained great interest toward electronic packaging systems and material processing industries. The present study aims at developing a nondimensional semiempirical relation, which represents the cooling rate (Nu) in terms o...

Full description

Bibliographic Details
Main Authors:	Siddiqi, Mohammad Umar, Gulhane, P. Nitin, Khan, Sher Afghan, Taler, Jan, Cebula, Arthur, Oclon, Pawel, Patil, Rajesh
Format:	Article
Language:	English English English
Published:	John Wiley & Sons, Inc 2019
Subjects:	TJ163.26 Energy conservation
Online Access:	http://irep.iium.edu.my/71600/ http://irep.iium.edu.my/71600/ http://irep.iium.edu.my/71600/ http://irep.iium.edu.my/71600/1/10.1002%40htj.21460.pdf http://irep.iium.edu.my/71600/7/71600_Numerical%20investigation%20of%20semiempirical%20relations%20representing%20the%20local%20Nusselt%20number%20magnitude%20of%20a%20pin%20fin%20heat%20sink_WOS.pdf http://irep.iium.edu.my/71600/13/71600_Numerical%20investigation%20of%20semiempirical_scopus.pdf

id	iium-71600
recordtype	eprints
spelling	iium-716002019-09-24T05:47:49Z http://irep.iium.edu.my/71600/ Numerical investigation of semiempirical relations representing the local Nusselt number magnitude of a pin fin heat sink Siddiqi, Mohammad Umar Gulhane, P. Nitin Khan, Sher Afghan Taler, Jan Cebula, Arthur Oclon, Pawel Patil, Rajesh TJ163.26 Energy conservation Heat transfer augmentation study using air jet impingement has recently attained great interest toward electronic packaging systems and material processing industries. The present study aims at developing a nondimensional semiempirical relation, which represents the cooling rate (Nu) in terms of different geometric and impinging parameters. The spacing of the fin (S/dp) and the fin heights (H/dp) are the geometric parameters, while the impinging Reynolds number (Re) and nozzle‐target spacing (Z/d) are the impinging parameters. During the plot of the Nusselt profile, three vital secondary peaks are observed due to local turbulence of air over the heat sink. To incorporate this nonlinear behavior of the Nusselt profile in developing nondimensional empirical relations, the Nusselt profiles are divided into different regions of secondary rise and fall. Four different sets of the semiempirical relation using regression analysis are proposed for Z/d ≤ 6, H/dp ≤ 4.8 with S/dp ≤ 1.58, S/dp > 1.58 and for Z/d > 6, H/dp > 4.8 with S/dp ≤ 1.58, S/dp > 1.58. These empirical relations benefit the evaluation of the cooling rate (Nu) without any experimentation or simulation. John Wiley & Sons, Inc 2019-07 Article PeerReviewed application/pdf en http://irep.iium.edu.my/71600/1/10.1002%40htj.21460.pdf application/pdf en http://irep.iium.edu.my/71600/7/71600_Numerical%20investigation%20of%20semiempirical%20relations%20representing%20the%20local%20Nusselt%20number%20magnitude%20of%20a%20pin%20fin%20heat%20sink_WOS.pdf application/pdf en http://irep.iium.edu.my/71600/13/71600_Numerical%20investigation%20of%20semiempirical_scopus.pdf Siddiqi, Mohammad Umar and Gulhane, P. Nitin and Khan, Sher Afghan and Taler, Jan and Cebula, Arthur and Oclon, Pawel and Patil, Rajesh (2019) Numerical investigation of semiempirical relations representing the local Nusselt number magnitude of a pin fin heat sink. Heat Transfer—Asian Research, 48 (5). pp. 1857-1888. ISSN 1099-2871 E-ISSN 1523-1496 https://onlinelibrary.wiley.com/doi/10.1002/htj.21460 10.1002/htj.21460
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	TJ163.26 Energy conservation
spellingShingle	TJ163.26 Energy conservation Siddiqi, Mohammad Umar Gulhane, P. Nitin Khan, Sher Afghan Taler, Jan Cebula, Arthur Oclon, Pawel Patil, Rajesh Numerical investigation of semiempirical relations representing the local Nusselt number magnitude of a pin fin heat sink
description	Heat transfer augmentation study using air jet impingement has recently attained great interest toward electronic packaging systems and material processing industries. The present study aims at developing a nondimensional semiempirical relation, which represents the cooling rate (Nu) in terms of different geometric and impinging parameters. The spacing of the fin (S/dp) and the fin heights (H/dp) are the geometric parameters, while the impinging Reynolds number (Re) and nozzle‐target spacing (Z/d) are the impinging parameters. During the plot of the Nusselt profile, three vital secondary peaks are observed due to local turbulence of air over the heat sink. To incorporate this nonlinear behavior of the Nusselt profile in developing nondimensional empirical relations, the Nusselt profiles are divided into different regions of secondary rise and fall. Four different sets of the semiempirical relation using regression analysis are proposed for Z/d ≤ 6, H/dp ≤ 4.8 with S/dp ≤ 1.58, S/dp > 1.58 and for Z/d > 6, H/dp > 4.8 with S/dp ≤ 1.58, S/dp > 1.58. These empirical relations benefit the evaluation of the cooling rate (Nu) without any experimentation or simulation.
format	Article
author	Siddiqi, Mohammad Umar Gulhane, P. Nitin Khan, Sher Afghan Taler, Jan Cebula, Arthur Oclon, Pawel Patil, Rajesh
author_facet	Siddiqi, Mohammad Umar Gulhane, P. Nitin Khan, Sher Afghan Taler, Jan Cebula, Arthur Oclon, Pawel Patil, Rajesh
author_sort	Siddiqi, Mohammad Umar
title	Numerical investigation of semiempirical relations representing the local Nusselt number magnitude of a pin fin heat sink
title_short	Numerical investigation of semiempirical relations representing the local Nusselt number magnitude of a pin fin heat sink
title_full	Numerical investigation of semiempirical relations representing the local Nusselt number magnitude of a pin fin heat sink
title_fullStr	Numerical investigation of semiempirical relations representing the local Nusselt number magnitude of a pin fin heat sink
title_full_unstemmed	Numerical investigation of semiempirical relations representing the local Nusselt number magnitude of a pin fin heat sink
title_sort	numerical investigation of semiempirical relations representing the local nusselt number magnitude of a pin fin heat sink
publisher	John Wiley & Sons, Inc
publishDate	2019
url	http://irep.iium.edu.my/71600/ http://irep.iium.edu.my/71600/ http://irep.iium.edu.my/71600/ http://irep.iium.edu.my/71600/1/10.1002%40htj.21460.pdf http://irep.iium.edu.my/71600/7/71600_Numerical%20investigation%20of%20semiempirical%20relations%20representing%20the%20local%20Nusselt%20number%20magnitude%20of%20a%20pin%20fin%20heat%20sink_WOS.pdf http://irep.iium.edu.my/71600/13/71600_Numerical%20investigation%20of%20semiempirical_scopus.pdf
first_indexed	2023-09-18T21:41:31Z
last_indexed	2023-09-18T21:41:31Z
_version_	1777413171588366336

Numerical investigation of semiempirical relations representing the local Nusselt number magnitude of a pin fin heat sink

Similar Items