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ISSN:2394-3661 | Crossref DOI | SJIF: 5.138 | PIF: 3.854

International Journal of Engineering and Applied Sciences

(An ISO 9001:2008 Certified Online and Print Journal)

Combined Convection Heat Transfer at the Entrance Region of Horizontal Semicircular Duct

( Volume 5 Issue 1,January 2018 ) OPEN ACCESS
Author(s):

Akeel Abdullah Mohammed, Mustafa AbduI Mageed Mohammed

Abstract:

Experimental study has been conducted on mixed convection heat transfer at the entrance  region of uniformly heated horizontal semicircular duct with flat plate at the bottom. The effect of  heat flux and Reynolds number on the local and average Nusselt number has been investigated. The Study has been covered a wide range of heat flux (510 ≤q ≤ 1060) W/m2 and Reynolds number varies from 500 to 2000 . The results show that, the local Nusselt number value increases as Reynolds number and heat flux increase. An empirical equation of average Nusselt number as a function of Rayleigh number and Reynolds number has been deduced.

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