Numerical Simulation of Mixed Convection in a Rotating Cylindrical Cavity: Influence of Prandtl Number. (2nd May 2013)

• Record Type: Journal Article
• Authors: Urquiza, Gustavo; Castro, Laura; García, Juan; Basurto, Miguel; Bogarin, Enoc
• Other Names: Yu Bo Academic Editor.
• Is Part Of: Advances in mechanical engineering. Volume 2013(2013)
• Publication Date: 2013-05-02
• Subjects: Mechanical engineering -- Periodicals; 621.05
• DOI: 10.1155/2013/950765
• Languages: English
• ISSNs: 1687-8132

Abstract

Abstract : A numerical study of the flow and heat transfer on a rotating cylindrical cavity solving the mass, momentum, and energy equations is presented in this work. The study describes the influence of the Prandtl number on flow in critical state on a cavity which contains a cooling fluid. Problem studied includes Prandtl numbers 0.001 < Pr > 15, aspect ratios 0.25 < A > 1, and Reynolds numbers 0.001 < Re > 600 . Differential equations have been discretised using the finite differences method. The results show a tendency followed by heat transfer as the Reynolds number increases from 300 to 600; in addition, emphasis on the critical values of the Rayleigh number for small Prandtl numbers shows that thermal instability in mixed convection depends on the Prandtl number.