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Dynamic Discharge Arc DriverA computer program using nonlinear RLC circuit analysis was developed to accurately model the electrical discharge performance of the Ames 1-MJ energy storage and arc-driver system. Solutions of circuit parameters are compared with experimental circuit data and related to shock speed measurements. Computer analysis led to the concept of a Dynamic Discharge Arc Driver (DDAD) capable of increasing the range of operation of shock-driven facilities. Utilization of mass addition of the driver gas offers a unique means of improving driver performance. Mass addition acts to increase the arc resistance, which results in better electrical circuit damping with more efficient Joule heating, producing stronger shock waves. Preliminary tests resulted in an increase in shock Mach number from 34 to 39 in air at an initial pressure of 2.5 torr.
Document ID
19750034289
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Dannenberg, R. E.
(NASA Ames Research Center Moffett Field, Calif., United States)
Slapnicar, P. I.
(Zagreb Sveuciliste, Split, Yugoslavia)
Date Acquired
August 8, 2013
Publication Date
January 1, 1975
Subject Category
Research And Support Facilities (Air)
Report/Patent Number
AIAA PAPER 75-176
Meeting Information
Meeting: American Institute of Aeronautics and Astronautics, Aerospace Sciences Meeting
Location: Pasadena, CA
Start Date: January 20, 1975
End Date: January 22, 1975
Sponsors: American Institute of Aeronautics and Astronautics
Accession Number
75A18361
Distribution Limits
Public
Copyright
Other

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