The onset of instability in a hydromagnetic channel flow of Casson fluid: the accurate solutions

作者：

Highlights：

• Linear stability of a non-Newtonian hydromagnetic Casson fluid in a channel flow is studied.

• Plane-Poiseuille flow of Casson fluid becomes unstable to a wall-mode.

• Increasing magnetic field stabilizes flow which postpones instability in a channel.

• Interesting eigenspectra are found to form a leaf-like structure.

摘要

•Linear stability of a non-Newtonian hydromagnetic Casson fluid in a channel flow is studied.•Plane-Poiseuille flow of Casson fluid becomes unstable to a wall-mode.•Increasing magnetic field stabilizes flow which postpones instability in a channel.•Interesting eigenspectra are found to form a leaf-like structure.

论文关键词：Hydrodynamic stability,Plane-Poiseuille flow,Casson fluid,Chebyshev collocation

论文评审过程：Received 11 November 2021, Revised 1 July 2022, Accepted 8 August 2022, Available online 28 August 2022, Version of Record 28 August 2022.

论文官网地址：https://doi.org/10.1016/j.amc.2022.127475