Hydrodynamic and Hydromagnetic Stability of Viscous-Viscoelastic Superposed Fluids in Presence of Suspended Particles | Zendy

Pardeep Kumar | Zendy; Mahinder Singh | Zendy

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Hydrodynamic and Hydromagnetic Stability of Viscous-Viscoelastic Superposed Fluids in Presence of Suspended Particles

Author(s) -

Pardeep Kumar,

Mahinder Singh

Publication year - 2007

Publication title -

physical separation in science and engineering

Language(s) - English

Resource type - Journals

eISSN - 1478-6486

pISSN - 1478-6478

DOI - 10.1155/2007/28908

Subject(s) - wavenumber , viscoelasticity , instability , viscous liquid , newtonian fluid , magnetic field , mechanics , rayleigh–taylor instability , physics , non newtonian fluid , classical mechanics , thermodynamics , optics , quantum mechanics

The Rayleigh‐Taylor instability of a Newtonian viscous fluid overlying an Oldroydian viscoelastic fluid containing suspended particles is considered. As in both Newtonian viscous-viscous fluids, the system is stable in the potentially stable case and unstable in the potentially unstable case, this holds for the present problem also. The effect of a variable horizontal magnetic field is also considered. The presence of magnetic field stabilizes a certain wavenumber band, whereas the system is unstable for all wavenumbers in the absence of the magnetic field for the potentially unstable arrangement.

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