Characteristics of a Supersonic Plasma Flow in a Magnetic Nozzle.

• INUTAKE Masaaki

  Department of Electrical Engineering, Tohoku University

• ANDO Akira

  Department of Electrical Engineering, Tohoku University

• HATTORI Kunihiko

  Department of Electrical Engineering, Tohoku University

• TOBARI Hiroyuki

  Department of Electrical Engineering, Tohoku University

• YAGAI Tsuyoshi

  Department of Electrical Engineering, Tohoku University

Abstract

A high-density and high-speed flowing helium-plasma is produced quasi-steadily (1 ms) by use of a magneto-plasma-dynamic arcjet (MPDA) in various external magnetic field configurations. In a uniform magnetic field configuration, an ion acoustic Mach number M_i of the plasma flow is limited to be nearly unity. In a divergent magnetic nozzle configuration, on the other hand, the Mach number increases up to almost 3. The Mach number increases in proportion to the gradient of the magnetic field. Spatial variations of M_i are well predicted by an isentropic model of compressible flow. The Mach number decreases in the downstream region due to charge-exchange collisional processes that are caused by a limited pumping capability of surface-recombined neutral gases.

Journal

• Journal of Plasma and Fusion Research

  Journal of Plasma and Fusion Research 78 (12), 1352-1360, 2002

  The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

• MPD arcjet
• magnetic nozzle
• plasma acceleration
• Mach number
• Mach probe
• HITOP
• supersonic plasma flow
• isentropic model

Details

• CRID: 1390001206513108224
• NII Article ID: 130000133612
• NII Book ID: AN10401672
• DOI: 10.1585/jspf.78.1352
• COI: 1:CAS:528:DC%2BD3sXhsVGmu7k%3D
• NDL BIB ID: 6422184
• ISSN: 09187928
• ISSN: http://id.crossref.org/issn/09187928
• Web Site: http://id.ndl.go.jp/bib/6422184
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6422184
• Web Site: http://www.jstage.jst.go.jp/article/jspf/78/12/78_12_1352/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed