An Asymptotic Investigation of the Non-stationary Modes of Instability on a Rotating-disk in the Presence of a Large Magnetic Field Strength

Authors

  • HA Jasmine Department of Mathematics, University of Rajshahi, Rajshahi

DOI:

https://doi.org/10.3329/jbas.v34i1.5491

Keywords:

Magnetic field, Instability, Rotating-disk flow

Abstract

Asymptotic solutions for stationary and non-stationary modes for the upper and lower branch
disturbances assuming large scale magnetic fields are investigated. A triple deck structure which
governs the lower branch modes for a large scale magnetic field is displayed. The wavenumbers
and waveangle calculated from the eigenrelations α ≈ 2.62m5/4r-1/2, β ≈ 0.78 m1/4 r1/2, φ = 0.298m-1r,
to be consistent with the numerical results for large scale magnetic fields.

Key words: Magnetic field; Instability; Rotating-disk flow

DOI: 10.3329/jbas.v34i1.5491

Journal of Bangladesh Academy of Sciences, Vol.34, No.1, 49-58, 2010

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How to Cite

Jasmine, H. (2010). An Asymptotic Investigation of the Non-stationary Modes of Instability on a Rotating-disk in the Presence of a Large Magnetic Field Strength. Journal of Bangladesh Academy of Sciences, 34(1), 49–58. https://doi.org/10.3329/jbas.v34i1.5491

Issue

Vol. 34 No. 1 (2010)

Section

Articles