Comprehensive Insights into Convective Heat Transfer Mechanisms
Osama Mohammed Elmardi Suleiman Khayal1, Fathelrahman Ahmed Elmahi2, Awadalla Ahmed3 and Ahmed Ali Mustafa Mohammed4
1,2,3,4Department of Mechanical Engineering, Faculty of Engineering and Technology, Nile Valley University, Atbara – Sudan and Elsheikh Abdallah Elbadri University, Berber – Sudan
Abstract
This paper presents a comprehensive introduction to convective heat transfer, a critical process in various engineering applications and natural phenomena. We begin by defining the fundamental concepts and terminology associated with convective heat transfer, delineating its significance in thermal management and fluid dynamics. Theoretical foundations, including the governing equations and boundary layer concepts, are discussed in detail. A mathematical analysis is performed to derive key relationships and principles governing convective heat transfer, including the role of convective heat transfer coefficients, Nusselt number, and Prandtl number. We also explore different regimes of convection, namely forced and natural convection, and their implications in practical scenarios. Through a combination of analytical methods and case studies, we illustrate the impact of various parameters on convective heat transfer rates. The findings underscore the importance of understanding convective processes for optimizing thermal systems in engineering designs.
Keywords: Forced Convection; Dimensional Analysis; Reynolds’s Analogy; Heat Exchanger Effectiveness; Natural Convection.
