Heat Transfer in a Non-Newtonian Jeffrey's Fluid over a Non-Isothermal Wedge. (2015)

• Record Type: Journal Article
• Authors: Rao, A. Subba; Nagendra, N.; Prasad, V. Ramachandra
• Is Part Of: Procedia engineering. Volume 127(2015)
• Page Start: 775
• Page End: 782
• Publication Date: 2015
• Subjects: Jeffrey's fluid -- Heat transfer -- Boundary layers -- Non-isothermal wedge -- Skin friction -- Nusselt number; Engineering -- Congresses; Engineering -- Periodicals; Engineering; Conference proceedings; Periodicals; 620.005
• DOI: 10.1016/j.proeng.2015.11.412
• Languages: English
• ISSNs: 1877-7058

Abstract

Abstract: The boundary layer flow and heat transfer of an incompressible Jeffrey's viscoelastic fluid from a non-isothermal wedge is analysed. The surface of the wedge is maintained at a constant temperature. The boundary layer conservation equations, which are parabolic in nature, are normalized into non-similar form and then solved numerically with the well-tested, efficient, implicit, stable Keller-box finite-difference scheme. The variation of the reduced Nusselt and Local Skin Friction numbers with Deborah number, De, for various values of ratio of relaxation to retardation times ( λ ) are also tabulated and provided in graphical form. It is found that the velocity is enhanced with increasing Deborah number whereas temperature is reduced. Increasing λ accelerates the velocity but decelerates the temperature. Increasing the pressure gradient parameter m, velocity increases throughout the boundary layer but temperature decreases.