Chan, Yung-An und Herdrich, Georg (2023) Design Criteria Assessment of a Magnetic Nozzle. Physica Scripta, 99 (015608), Seiten 1-10. Institute of Physics Publishing. doi: 10.1088/1402-4896/ad15d4. ISSN 0031-8949.
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Offizielle URL: https://iopscience.iop.org/article/10.1088/1402-4896/ad15d4/pdf
Kurzfassung
A model to assess the design criteria for a convergent-divergent magnetic nozzle is provided. This model is based on an ideal single-fluid magnetohydrodynamic flow assumption to evaluate the acceleration and detachment in the magnetic nozzle. A thermodynamic correlation of plasma internal energy during the propagation in magnetic nozzle is presented. The result reveals the limitation of a magnetic nozzle on the conversion of internal energy to kinetic energy, where an upper limit of around 19% is derived, assuming plasma undergoes ideal conditions. In addition, criteria derived from the model also point out that a threshold on magnetic flux density exists to prevent the occurrence of flow discontinuity during propagation along the magnetic nozzle. The result hints the essential role of electric field on the acceleration processes of a magnetic nozzle, which can potentially be the key to overcome the limitation of performance of magnetic nozzle.
elib-URL des Eintrags: | https://elib.dlr.de/198178/ | ||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||
Titel: | Design Criteria Assessment of a Magnetic Nozzle | ||||||||||||
Autoren: |
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Datum: | 28 Dezember 2023 | ||||||||||||
Erschienen in: | Physica Scripta | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Ja | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Ja | ||||||||||||
In ISI Web of Science: | Ja | ||||||||||||
Band: | 99 | ||||||||||||
DOI: | 10.1088/1402-4896/ad15d4 | ||||||||||||
Seitenbereich: | Seiten 1-10 | ||||||||||||
Herausgeber: |
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Verlag: | Institute of Physics Publishing | ||||||||||||
ISSN: | 0031-8949 | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | magnetic nozzle, MHD, neutralizer-free, electric propulsion | ||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||
HGF - Programmthema: | Technik für Raumfahrtsysteme | ||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||
DLR - Forschungsgebiet: | R SY - Technik für Raumfahrtsysteme | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Projekt Decentralized Energy supplied Electrical Propulsion | ||||||||||||
Standort: | Göttingen | ||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Raumfahrzeuge, GO | ||||||||||||
Hinterlegt von: | Chan, Dr.-Ing. Yung-An | ||||||||||||
Hinterlegt am: | 17 Jan 2024 11:48 | ||||||||||||
Letzte Änderung: | 17 Jan 2024 11:48 |
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