NASA NTRS · 19770003401
The dc arc characteristics in subsonic orifice nozzle flow
Abstract
The cold air flow field for a 1/27 cm orifice nozzle was determined for subsonic flow velocities. In addition, d.c. arc voltage, current, and diameter measurements were made for a range of velocities and arc gaps. Average voltage gradients increased rapidly as an arc extinguishing velocity was approached. Measured values of current and diameter were used as an input for relaxation solution of an energy balance equation to compute radial temperature profiles. Calculated arc voltage gradients compare favorably with measured average voltage gradients.
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Nagamatsu, H. T., Kinsinger, R. E.. 1976-01-01. The dc arc characteristics in subsonic orifice nozzle flow. https://ntrs.nasa.gov/citations/19770003401
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