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Design Criteria Assessment of a Magnetic Nozzle

Chan, Yung-An and Herdrich, Georg (2023) Design Criteria Assessment of a Magnetic Nozzle. Physica Scripta, 99 (015608), pp. 1-10. Institute of Physics Publishing. doi: 10.1088/1402-4896/ad15d4. ISSN 0031-8949.

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Official URL: https://iopscience.iop.org/article/10.1088/1402-4896/ad15d4/pdf

Abstract

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.

Item URL in elib:https://elib.dlr.de/198178/
Document Type:Article
Title:Design Criteria Assessment of a Magnetic Nozzle
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Chan, Yung-AnUNSPECIFIEDhttps://orcid.org/0000-0001-5494-0514150914690
Herdrich, GeorgUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:28 December 2023
Journal or Publication Title:Physica Scripta
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:99
DOI:10.1088/1402-4896/ad15d4
Page Range:pp. 1-10
Editors:
EditorsEmailEditor's ORCID iDORCID Put Code
Goring, GeorgiaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Publisher:Institute of Physics Publishing
ISSN:0031-8949
Status:Published
Keywords:magnetic nozzle, MHD, neutralizer-free, electric propulsion
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Project Decentralized Energy Supplied Electrical Propulsion
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Spacecraft, GO
Deposited By: Chan, Dr.-Ing. Yung-An
Deposited On:17 Jan 2024 11:48
Last Modified:17 Jan 2024 11:48

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