Some studies on transient behaviours of sheath formation in dusty plasma with the effect of adiabatically heated electrons and ions

G C DAS

doi:10.1088/2058-6272/aa750c

Plasma Science and Technology > 2017 > 19(9): 95002-095002. > DOI: 10.1088/2058-6272/aa750c

G C DAS. Some studies on transient behaviours of sheath formation in dusty plasma with the effect of adiabatically heated electrons and ions[J]. Plasma Science and Technology, 2017, 19(9): 95002-095002. DOI: 10.1088/2058-6272/aa750c

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Some studies on transient behaviours of sheath formation in dusty plasma with the effect of adiabatically heated electrons and ions

G C DAS

Gyan Darshan Academy, VIP Road, Guwahati-781022, India

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Received Date: March 07, 2017

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Abstract

Abstract

Based on quasipotential analysis, a plasma sheath is studied through the derivation of the Sagdeev potential equation in dusty plasma coexisting with adiabatically heated electrons and ions. Salient features as to the existence of sheaths are shown by solving the Sagdeev potential equation through the Runge–Kutta method, with appropriate consideration of adiabatically heated electrons and ions in the dynamical system. It has been shown that adiabatic heating of plasma sets a limit to the critical dust speed depending on the densities and Mach number, and it is believed that its role is very important to the sheath. One present problem is the contraction of the sheath region whereby dust grains levitated into the sheath lead to a crystallization similar to the formation of nebulons and are compressed to a larger chunk of the dust cloud by shrinking of the sheath. Our overall observations advance knowledge of sheath formation and are expected to be of interest in astroplasmas.
- adiabatic plasmas,
- dusty plasmas,
- Bohm criterion,
- sheath

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References (27)

References

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