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arXiv · 1310.7758

Kelvin-Helmholtz Instability in non-Newtonian Complex Plasma

D. Banerjee·S. Garai·M. S. Janaki·N. Chakrabarti
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Abstract

The Kelvin-Helmholtz (KH) instability is studied in a non-Newtonian dusty plasma with an experimentally verified model [Phys. Rev. Lett. {\bf 98}, 145003 (2007)] of shear flow rate dependent viscosity. The shear flow profile used here is a parabolic type bounded flow. Both the shear thinning and shear thickening properties are investigated in compressible as well as incompressible limits using a linear stability analysis. Like the stabilizing effect of compressibility on the KH instability, the non-Newtonian effect in shear thickening regime could also suppress the instability but on the contrary, shear thinning property enhances it. A detailed study is reported on the role of non-Newtonian effect on KH instability with conventional dust fluid equations using standard eigenvalue analysis.

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D. Banerjee, S. Garai, M. S. Janaki, N. Chakrabarti. 2013-10-29. Kelvin-Helmholtz Instability in non-Newtonian Complex Plasma. https://doi.org/10.1063/1.4813796

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