Dust acoustic shock waves in two-component dusty plasma

Details Dust acoustic shock waves in two-component dusty plasma Dust acoustic shock waves in two-component dusty plasma

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003njph....5..142g&link_type=abstract

New Journal of Physics, Volume 5, Issue 1, pp. 142 (2003).

Physics

2

Scientific paper

The effect of electron dust collision on small-amplitude nonlinear dust acoustic (DA) waves in two-component thermal dusty plasma consisting of positively charged (due to thermionic emission) dust grains and electrons has been investigated incorporating the nonadiabaticity of dust-charge variation arising due to delays in the dust charging, i.e. due to small nonzero values of ohgrpd/ngrch, where ohgrpd is the dust-plasma frequency and ngrch is the dust-charging frequency. The propagation of small-amplitude DA waves is governed by a modified Korteweg de Vries Burger equation in which the Burger term arising due to the charge delay induced dissipation. Numerical investigations reveal that this equation has a shock-wave solution. Numerical investigations also reveal that in the absence of collision-induced dissipation the charge-delay-induced dissipation also causes the generation of a DA shock wave in two-component dusty plasma.

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