Accession Number : AD0484578

Title :   DEVELOPMENT OF 9000 K, 1400-ATM HOT-SHOT GAS SOURCE FOR PULSED MHD ACCELERATOR.

Descriptive Note : Rept. for 1 Jun 65-1 Feb 66,

Corporate Author : AEROSPACE CORP EL SEGUNDO CA LAB OPERATIONS

Personal Author(s) : Grabowsky, Wallis R. ; Durran, Donald A. ; Spencer, Donald J.

Report Date : MAY 1966

Pagination or Media Count : 40

Abstract : A hot-shot type nitrogen source has been developed that will produce the desired gasdynamic properties required for pulse-type MHD accelerator experiments. The source stagnation conditions are T3 = 9000 K and P = 1400 atm. Usable flow time of the source is approximately 3 msec, and the source pressure decay rate is 15%/(msec). A real-gas expansion (N2) can be made for typical gasdynamic parameters that agrees with measured channel values within experimental accuracy by accounting for contamination and seed material (KN3). Evidence presented supports the conclusion that highly ablative liners (Delrin, Teflon, etc.) considerably degrade the performance of high-pressure, high-temperature discharge devices. BN liners have an average contamination of 4% by weight; lower contamination is probably possible with lower stagnation temperatures. (Author)

Descriptors :   (*MAGNETOHYDRODYNAMICS, NITROGEN), (*PLASMA ACCELERATORS, MAGNETOHYDRODYNAMICS), MAGNETOHYDRODYNAMIC GENERATORS, STAGNATION POINT, ELECTRICAL CONDUCTIVITY, INSTRUMENTATION, PRESSURE, TEMPERATURE, VELOCITY, SHOCK TUBES, TRANSDUCERS, MAGNETIC FIELDS, NITRIDES, BORON COMPOUNDS, CONTAMINATION, HYPERSONIC WIND TUNNELS.

Subject Categories : Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE