Numerical simulation of liquid metals in differentially heated enclosure undergoing orthogonal rotation

• Published in: International journal of heat and mass transfer Vol. 49; no. 19; pp. 3500 - 3513
• Main Authors: Baig, M.F., Zunaid, M.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.09.2006; Elsevier
• Subjects: Centrifugal force; Convection; Convection and heat transfer; Coriolis force; Exact sciences and technology; Fluid dynamics; Fundamental areas of phenomenology (including applications); Heat transfer; Laminar flows; Laminar flows in cavities; Liquid metals; Orthogonal rotation; Physics; Turbulent flows, convection, and heat transfer; Orthogonal rotation; Centrifugal force; Liquid metals; Coriolis force; Convection; Heat transfer; Temperature distribution; Rotating system; Streamlines; Cellular convection; Digital simulation; Coriolis acceleration; Cavity flow; Finite difference method
• ISSN: 0017-9310; 1879-2189
• DOI: 10.1016/j.ijheatmasstransfer.2006.02.046

In this work a numerical investigation has been performed to examine the characteristics of mixed convective heat transfer in square enclosures undergoing orthogonal rotation i.e. rotation axis and gravity axis are orthogonal to each other. A semi implicit finite difference code on a collocated grid is used to solve the momentum and energy equations subject to Boussinesq approximation. The study is carried out for a wide range of operating parameters such as Rayleigh number ( Ra), Taylor number ( Ta), Rotational Rayleigh number ( Ra w) for a fixed Prandtl number ( Pr). The numerical experiments have been carried out for a fixed Pr = 0.01, Ra varies from 10 5 to 10 7 while Ta and Ra w vary from almost 0 to 10 9. Results reveal that significant increase or decrease in heat transfer rates can be achieved by the rotational effects, mainly influenced by centrifugal force.