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Near- and far-field plume studies of a one-kilowatt arcjet

Publication ,  Journal Article
Gallimore, AD; Kim, SW; Foster, JE; King, LB; Gulczinski, FS
Published in: Journal of Propulsion and Power
January 1, 1996

To support studies of transport in arcjet plumes, axial and radial profiles of electron temperature, electron number density, stagnation pressure, and flowfield were obtained over an extensive volume of the plume of a 1-kW arcjet operating on hydrogen. All experiments were performed in a 6 by 9 m vacuum chamber at a tank pressure of less than 4 × 10-4 torr during arcjet operation. Electron temperatures obtained spectroscopically 1.2 cm downstream of the exit plane ranged from 0.10 to 0.13 eV, while electron number densities determined ∼2 cm downstream of the exit plane via langmuir probe varied between 0.3-1 × 1012 cm-3. Far-field langmuir probe measurements showed that a rapid radial variation in electron number density exists, ranging from 0.5 to 5 × 109 cm-3, and from 0.5 to 2 × 109 cm-3, 30 and 88 cm downstream of the exit plane, respectively. Electron temperatures at these axial locations show much less of an axial dependence, ranging between 0.07-0.20 eV at both axial positions. Finally, an impact pressure probe was used to measure the radial profiles of stagnation pressure 53 and 64 cm from the exit plane as well as flow angle. The impact pressure probe data compare favorably with stagnation pressures predicted by a source-flow code and suggests that the heavy particles diffuse less radially than do the electrons.

Duke Scholars

Published In

Journal of Propulsion and Power

DOI

ISSN

0748-4658

Publication Date

January 1, 1996

Volume

12

Issue

1

Start / End Page

105 / 111

Related Subject Headings

  • Aerospace & Aeronautics
  • 4001 Aerospace engineering
  • 0913 Mechanical Engineering
  • 0901 Aerospace Engineering
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Gallimore, A. D., Kim, S. W., Foster, J. E., King, L. B., & Gulczinski, F. S. (1996). Near- and far-field plume studies of a one-kilowatt arcjet. Journal of Propulsion and Power, 12(1), 105–111. https://doi.org/10.2514/3.23997
Gallimore, A. D., S. W. Kim, J. E. Foster, L. B. King, and F. S. Gulczinski. “Near- and far-field plume studies of a one-kilowatt arcjet.” Journal of Propulsion and Power 12, no. 1 (January 1, 1996): 105–11. https://doi.org/10.2514/3.23997.
Gallimore AD, Kim SW, Foster JE, King LB, Gulczinski FS. Near- and far-field plume studies of a one-kilowatt arcjet. Journal of Propulsion and Power. 1996 Jan 1;12(1):105–11.
Gallimore, A. D., et al. “Near- and far-field plume studies of a one-kilowatt arcjet.” Journal of Propulsion and Power, vol. 12, no. 1, Jan. 1996, pp. 105–11. Scopus, doi:10.2514/3.23997.
Gallimore AD, Kim SW, Foster JE, King LB, Gulczinski FS. Near- and far-field plume studies of a one-kilowatt arcjet. Journal of Propulsion and Power. 1996 Jan 1;12(1):105–111.
Journal cover image

Published In

Journal of Propulsion and Power

DOI

ISSN

0748-4658

Publication Date

January 1, 1996

Volume

12

Issue

1

Start / End Page

105 / 111

Related Subject Headings

  • Aerospace & Aeronautics
  • 4001 Aerospace engineering
  • 0913 Mechanical Engineering
  • 0901 Aerospace Engineering
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics