The effect of the conjugate-conduction parameter and Prandtl number on the free convective couple stress fluid flow over a vertical cylinder Online publication date: Wed, 20-Aug-2014
by H.P. Rani; G. Janardhana Reddy; Chang Nyung Kim
Progress in Computational Fluid Dynamics, An International Journal (PCFD), Vol. 14, No. 5, 2014
Abstract: Numerical analysis is performed to study the conjugate heat transfer effects on the transient free convective couple stress fluid flow over a vertical slender hollow circular cylinder with the inner surface at a constant temperature. A set of non-dimensional governing equations namely, the continuity, momentum and energy equations is derived and these equations are unsteady non-linear and coupled. An unconditionally stable Crank-Nicolson type of implicit finite difference scheme is employed to obtain the discretised forms of governing equations. These equations are solved using the Thomas and pentadiagonal algorithms. The numerical results are compared and found to be in good agreement with previously published results as special cases of the present investigation. Transient velocity and temperature profiles, average skin-friction coefficient (Cf) and average Nusselt number (Nu) are shown graphically. In all these profiles it is observed that the time required for the variables to reach the steady-state increases with the increasing values of conjugate-conduction parameter (P) and Prandtl number. In the vicinity of the hot wall, the velocity and temperature of the fluid decrease as P increases. It is noticed that the steady-state values of Cf and Nu decreases as P increases.
Online publication date: Wed, 20-Aug-2014
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the Progress in Computational Fluid Dynamics, An International Journal (PCFD):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email firstname.lastname@example.org