- Kelvin-Helmholtz Instability in Weakly Non-Ideal Magnetized Dusty Plasmas with Grain Charge Fluctuations
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Publisher SummaryThis chapter investigates the parallel Kelvin–Helmholtz (K–H) instability in weakly non-ideal dusty plasmas having transverse shear in the dust flow velocity parallel to the magnetic field by using the van der Waals equation of state and the grain charging equation. At higher temperatures, the critical shear for the onset of the density gradient driven K–H instability increases due to non-ideal and thermal contributions. Dust temperature gradient gives rise to a new type of K–H instability when the relative flow speed between the adjacent layers exceeds a threshold value which is much smaller than the dust-acoustic wave (DAW) phase speed. Typically, grain charge fluctuations lead to damping effects, thereby reducing the instability growth rates.

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