Joshi, Eshita und Khrapak, Sergey und Knapek, Christina A. und Huber, Peter und Mohr, Daniel P. und Schwabe, Mierk (2021) Formation of droplets in weightless complex plasmas. Contributions to Plasma Physics. Wiley. doi: 10.1002/ctpp.202100081. ISSN 0863-1042.
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Offizielle URL: https://onlinelibrary.wiley.com/doi/10.1002/ctpp.202100081
Kurzfassung
Microparticles immersed in a low-temperature plasma acquire strong negative charges and thus repel each other. Nevertheless, effective attraction between the microparticles in such a complex plasma can occur due to the interplay between the fluxes of plasma ions and the microparticles. Here, we report the observation of droplets formed in a complex plasma during a parabolic flight, and explain their formation in terms of the ion drag force that sustains the droplet. We have found a good agreement between the experimentally determined droplet size and its theoretical estimate using the ion drag force mechanism. Lower values of the electron temperature result in better agreement, as is consistent with the pulsed mechanism of discharge used experimentally.
elib-URL des Eintrags: | https://elib.dlr.de/142588/ | ||||||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||
Zusätzliche Informationen: | Theory work based on PK-3 Plus and Parabolic Flight data. | ||||||||||||||||||||||||||||
Titel: | Formation of droplets in weightless complex plasmas | ||||||||||||||||||||||||||||
Autoren: |
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Datum: | 30 Mai 2021 | ||||||||||||||||||||||||||||
Erschienen in: | Contributions to Plasma Physics | ||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||
DOI: | 10.1002/ctpp.202100081 | ||||||||||||||||||||||||||||
Verlag: | Wiley | ||||||||||||||||||||||||||||
ISSN: | 0863-1042 | ||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||
Stichwörter: | complex plasma, droplets, dust structures, dusty plasma, ion drag force | ||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||||||||||||||||||
HGF - Programmthema: | Forschung unter Weltraumbedingungen | ||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | R FR - Forschung unter Weltraumbedingungen | ||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Materialforschung und Mikrogravitation (MuM) | ||||||||||||||||||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Materialphysik im Weltraum > Gruppe Komplexe Plasmen | ||||||||||||||||||||||||||||
Hinterlegt von: | Joshi, Eshita | ||||||||||||||||||||||||||||
Hinterlegt am: | 07 Jun 2021 08:46 | ||||||||||||||||||||||||||||
Letzte Änderung: | 24 Mai 2022 23:47 |
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