Theoretical analysis of annular laminar flows with MHD interaction driven by rotating co-axial cylinder

Ryo Sasaki, Takayasu Fujino, Hidemasa Takana, Hiromichi Kobayashi

Research output: Contribution to journalArticlepeer-review

Abstract

Theoretical solution is derived for annular laminar flows with MHD interaction driven by a rotating co-axial cylinder. The effects on the flow field and rotational torque are clarified by changing the radius ratio and the strength of MHD interaction. As the radius ratio increases, azimuthal flow velocity increases and approaches the plane Couette flow profile for weak MHD interaction. The azimuthal flow velocity, however, decreases as the MHD interaction increases, and the reverse flow emerges in large radial locations. As the MHD interaction increases, the rotational torque increases. A larger radius ratio leads to the larger sensitivity of the change in rotational torque.

Original languageEnglish
Article number12311
JournalElectronics and Communications in Japan
Volume104
Issue number2
DOIs
Publication statusPublished - 2021 Jun

Keywords

  • annular rotating flow
  • MHD interaction
  • theoretical analysis
  • torque control

ASJC Scopus subject areas

  • Signal Processing
  • Physics and Astronomy(all)
  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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