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 language | English |
|---|---|
| Pages (from-to) | (In-press) |
| Journal | Physics of Fluids |
| Volume | 34 |
| Early online date | 25 Aug 2022 |
| DOIs |
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| Publication status | E-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/10.1063/5.0103619Copyright © 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