Accession Number : AD0263203

Title :   BASIC STUDY OF ENERGY EXCHANGE PROCESS BETWEEN AN ELECTRIC ARC AND A GAS FLOW

Corporate Author : PLASMADYNE CORP SANTA ANA CALIF

Personal Author(s) : THIENE,PAUL G.

Report Date : 23 FEB 1961

Pagination or Media Count : 1

Abstract : SPARK STABILIZATION BY A GAS VORTEX. (AD-228 775): Three experimental studies were conducted. The first demonstrated photographically the stabilization of a spark by a gas vortex during the initial phase of the electrical breakdown. A relatively thorough investigation of the radial pressure distribution in the vortex was conducted. A photographic study was carried out to give data on the expansion of the spark channel with time and to note if instabilities develop in the spark. CONTINUOUS HIGH-TEMPERATURE GAS FLOW FACILITY (AD-225 412): The plasma-flow facility has a flow of gas heated by a gas-stabilized arc capable of heating flow of argon to more than 10,000 K. An attempt was made to measure the average electrical conductivity of the plasma over the cross section of the tube. The conductivity was on the order of 1 mho/cm. Two simple experiments were performed which demonstrate the usefulness of the plasma-flow facility as a tool for studying magnetohydrodynamic interactions. THEORETICAL STUDY OF THE FLEXURE OF AN ARC POSITIVE COLUMN (AD-228 540): It was found that when a planar zone of ohmic heating is subjected to a uniform normal flow, an asymmetrical temperature distribution develops with a shift of the peak downstream. It appeared that the resulting curvature of the zone would give rise to two local reactions. AD-263 20310N5 AD-263 204Div. 22U (TIPSB/LH) OTS price $5.60 Professional Design Co., Agawam, Mass. ENGINEERING, DESIGN AND DEVELOPMENT WORK ON RIFLES, MACHINE GUNS AND SPECIAL WEAPONS. Final narrative summary, 2 June-31 July 61. 31 July 61, 1v. incl. tables. (Contract DA 19-020-504-ORD-4947, Proj. TS2015) Unclassified report DESCRIPTORS: *Automatic weapons, *Small arms, Grenades, Recoilless rifles, Rifle grenade launchers, Design, Engineering, Calibration, Aircraft guns, Installation.

Descriptors :   *ELECTRIC ARCS, *GAS FLOW, *HIGH TEMPERATURE, *SHOCK TUBES, *VORTICES, ARGON, ELECTRIC DISCHARGES, ENERGY, MAGNETOHYDRODYNAMICS, PHOTOGRAPHIC ANALYSIS, PLASMAS(PHYSICS), STABILIZATION

Distribution Statement : APPROVED FOR PUBLIC RELEASE