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Dust acoustic wave properties in varying discharge volumes

Knapek, C. A. and Schwabe, Mierk and Yaroshenko, Victoriya and Huber, Peter and Mohr, Daniel P. and Konopka, Uwe (2023) Dust acoustic wave properties in varying discharge volumes. Physics of Plasmas, 30, 033703. American Institute of Physics (AIP). doi: 10.1063/5.0138784. ISSN 1070-664X.

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Official URL: https://aip.scitation.org/doi/10.1063/5.0138784


Properties of self-excited dust acoustic waves under the influence of active compression of the dust particle system were experimentally studied in the laboratory and under microgravity conditions (parabolic flight). Ground based laboratory experiments clearly show that wave properties can be manipulated by changing the discharge volume, its aspect ratio, and thus the dust particle density. Complementary experiments under microgravity conditions, performed to exclude the effects of gravity inflicted sedimentation and anisotropic behavior, were less conclusive due to residual fluctuations in the planes acceleration indicating the need for a better microgravity environment. A theoretical model, using plasma parameters obtained from particle-in-cell simulations as input, supports the experimental findings. It shows that the waves can be described as a new observation of the dust acoustic mode, which demonstrates their generic character.

Item URL in elib:https://elib.dlr.de/196127/
Document Type:Article
Title:Dust acoustic wave properties in varying discharge volumes
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Knapek, C. A.University of Greifswald, Greifswald, Germanyhttps://orcid.org/0000-0001-7105-627XUNSPECIFIED
Schwabe, MierkDLR, IPAhttps://orcid.org/0000-0001-6565-5890UNSPECIFIED
Mohr, Daniel P.DLR, IPAhttps://orcid.org/0000-0002-9382-6586UNSPECIFIED
Konopka, UweUniversity of Auburn, USAUNSPECIFIEDUNSPECIFIED
Date:10 March 2023
Journal or Publication Title:Physics of Plasmas
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:033703
Publisher:American Institute of Physics (AIP)
Keywords:complex plasmas, waves, dust acoustic waves
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Research under Space Conditions
DLR - Research theme (Project):R - Ekoplasma
Location: Neustrelitz , Oberpfaffenhofen
Institutes and Institutions:Institute of Materials Physics in Space > Research Group Complex Plasma
Institute for Solar-Terrestrial Physics
Institute of Atmospheric Physics > Earth System Model Evaluation and Analysis
Institute of Atmospheric Physics > Zentrale Aufgaben PA
Deposited By: Schwabe, Dr. Mierk
Deposited On:24 Jul 2023 10:52
Last Modified:07 Aug 2023 06:15

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