NUMERICAL SIMULATION FOR HEAT TRANSFER ANALYSIS IN LAMINAR FLOW OF CuO-WATER NANO-FLUID IN TUBES

Abdula Khazal, Emad; Baker Saleem, Khalid

	NUMERICAL SIMULATION FOR HEAT TRANSFER ANALYSIS IN LAMINAR FLOW OF CuO-WATER NANO-FLUID IN TUBES
Al-Qadisiyah Journal for Engineering Sciences
Article 1, Volume 10, Issue 1, 2017, Pages 87-102 PDF (0 K)
Authors
Emad Abdula Khazal^* ; Khalid Baker Saleem
Department of Mechanical Engineering, Engineering College, University of Basrah, Basrah, Iraq
Abstract
This paper presents a two-dimensional numerical analysis to study the laminar heat transfer and flow characteristics of CuO–water nanofluids through a tube at constant heat flux boundary condition at tube wall. Based on the single-phase approach, the effects of different parameters such as nanoparticle volume concentration (1% - 5%), and Reynolds number (500 - 2100) for various axial locations of tube with CuO–water nanofluids as working media were discussed in detail. The finite volume method and SIMPLE algorithm are utilized to solve the governing equations numerically. The numerical results shows that with enhancing Reynolds numbers, local Nusselt number increases. The variations of the local Nusselt number relative to volume concentrations are not uniform. According to the results, an equation was obtained for Nusselt number predicted data using the dimensionless numbers. The relation between local Nusselt number and Re number also compared for other previous work. There are agreement in results and found the maximum difference between results reach to be 6.3% approximately which validate the current computational model.
Keywords
Nanofluids; Heat transfer; tubes; laminar flow

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