Electrically Conducting Fluid Flow and Electric Potential in a Square Cavity Subjected to a Point Magnetic Source

ŞENEL P., TEZER M.

International Journal of Computational Fluid Dynamics, vol.36, no.5, pp.424-439, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 36 Issue: 5
  • Publication Date: 2022
  • Doi Number: 10.1080/10618562.2022.2127695
  • Journal Name: International Journal of Computational Fluid Dynamics
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Communication Abstracts, Compendex, Environment Index, INSPEC, Metadex, zbMATH, Civil Engineering Abstracts
  • Page Numbers: pp.424-439
  • Keywords: MHD, point magnetic source, electric potential, DRBEM, magnetic number, Hartmann number, Reynolds number, SIMULATION, FIELD
  • Middle East Technical University Affiliated: Yes

Abstract

© 2022 Informa UK Limited, trading as Taylor & Francis Group.Magnetohydrodynamics (MHD) flow in cavities subjected to both the magnetisation and the Lorentz forces due to a point magnetic source is studied. The governing PDEs are derived and iteratively solved by the dual reciprocity boundary elements method (DRBEM) with linear elements. It is shown that the magnetic field decelerates the axial flow around the point magnetic source, and a further increase in Ha causes a reverse flow in the pipe axis direction. An increase in Re, Ha, or Mn reduces the electric potential in magnitude. The planar velocity values decrease at the same rate as the Re increment. The influence of the magnetisation force lessens in high Re cases without alternating the axial velocity and the electric potential within the pipe. This study is the first to give the effects of both the magnetisation and the Lorentz forces on the fluid behaviour in terms of velocity, pressure, and electric potential.