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

ŞENEL P., Tezer-Sezgin M.

INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS, cilt.36, sa.5, ss.424-439, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 36 Sayı: 5
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1080/10618562.2022.2127695
  • Dergi Adı: INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS
  • Derginin Tarandığı İndeksler: 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
  • Sayfa Sayıları: ss.424-439
  • Anahtar Kelimeler: MHD, point magnetic source, electric potential, DRBEM, magnetic number, Hartmann number, Reynolds number, SIMULATION, FIELD
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

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.