Comment on "Linear stability of a rotating channel flow subjected to a static magnetic field " [Phys. Fluids 34, 054116 (2022)]

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Abstract

Recently, Sengupta and Ghosh [Phys. Fluids 34, 054116, (2022)] published a linear stability analysis of a pressure-driven channel flow which is subject to rotation around a spanwise axis and a uniform magnetic field which is applied in the same direction. Unfortunately, the formulation of the magnetohydrodynamic part of the problem contains an elementary error which makes the obtained results unphysical. The error is due to unfounded omission of the electric potential contribution in the induced electric current which, thus, does not satisfy the charge conservation.
Original languageEnglish
Pages (from-to)(In-press)
JournalPhysics of Fluids
Volume34
Early online date25 Aug 2022
DOIs
Publication statusE-pub ahead of print - 25 Aug 2022

Bibliographical note

This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Priede, J 2022, 'Comment on "Linear stability of a rotating channel flow subjected to a static magnetic field " [Phys. Fluids 34, 054116 (2022)]', Physics of Fluids, vol. (In-press), pp. (In-press) and may be found at https://dx.doi.org/10.1063/5.0103619

Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders.

Keywords

  • Condensed Matter Physics
  • Fluid Flow and Transfer Processes
  • Mechanics of Materials
  • Computational Mechanics
  • Mechanical Engineering

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