External charged debris in a flowing plasma: Charge fluctuation induced complexity

Bikramjit Joardar, Hitendra Sarkar and Madhurjya P. Bora

Chaos, Solitons & Fractals, 2025, vol. 200, issue P2

Abstract: In this work, we investigate the response of a flowing e-i plasma to embedded external charged debris, focusing on the periodic debris charge fluctuations that can trigger complex phenomena such as chaos and nonlinear Landau damping. We employ both kinetic and fluid simulations to analyze the plasma response to the time-dependent debris charge. Our findings indicate that the nature of nonlinear response can be considerably different for fluctuating positively charged external debris from a negatively charged debris. The simulations show that the debris charge fluctuation causes damping of the ion-acoustic wave as the debris velocity nears the ion-acoustic speed through nonlinear Landau damping and wave–wave interactions. We also present a theoretical framework to support the simulation findings. Our findings provide critical insights into debris-plasma interactions which may be useful in applications involving space debris management.

Keywords: Plasma-debris interaction; Charge fluctuation; Chaos; Nonlinear Landau damping (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:200:y:2025:i:p2:s0960077925011154

DOI: 10.1016/j.chaos.2025.117102

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