3-D numerical investigation of natural convection in a tilted cylindrical annulus containing molten potassium and controlling it using various magnetic fields

Article type: Research Article

Authors: Afrand, Masoud^{a; *} | Farahat, Said^a | Nezhad, Alireza Hossein^a | Ali Sheikhzadeh, Ghanbar^b | Sarhaddi, Faramarz^a

Affiliations: [a] Department of Mechanical Engineering, University of Sistan and Baluchestan, Zahedan, Iran | [b] Department of Mechanical Engineering, University of Kashan, Kashan, Iran

Correspondence: [*] Corresponding author: Masoud Afrand, Department of Mechanical Engineering, University of Sistan and Baluchestan, Zahedan, Iran. Tel.: +98 9132064001; E-mail: [email protected]

Abstract: In the present paper, numerical analysis of an electrically conducting fluid under the influence of a magnetic field in an inclined cylindrical annulus is presented. The inner and outer walls are kept at constant temperatures, and the top and bottom walls are assumed to be adiabatic. The numerical method used to solve the nonlinear governing equations of the problem is finite volume scheme. The computational results reveal that the effect of transverse magnetic field is more significant than that of the axial magnetic field on the average Nusselt number. Also, it is found that when the magnetic field is perpendicular to the axis of annulus, the average Nusselt number decreases from 7.8 to 4.7 with an increase in Ha from 0 to 60.

Keywords: Tilted cylindrical annulus, natural convection control, various magnetic fields, electrical potential, 3D numerical simulation

DOI: 10.3233/JAE-141975

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 46, no. 4, pp. 809-821, 2014