Accession Number:

AD0750004

Title:

Experimental Study of the Dynamics of a Spherical Flame,

Descriptive Note:

Corporate Author:

CALIFORNIA UNIV BERKELEY COLL OF ENGINEERING

Report Date:

1972-01-01

Pagination or Media Count:

17.0

Abstract:

Preliminary results of an experimental study conducted to investigate the dynamic behavior of flames in explosive gases are presented. The medium was an equimolar acetylene-oxygen mixture maintained initially at a pressure of 110 torr. and room temperature in an experimental vessel 9 cm in internal diameter. Ignition was performed by means of a neodymium laser beam focused on a 0.3 mm diameter steel wire. Experimental observations were performed by the use of a stroboscopic laser-schlieren system yielding a set of photographic records of wave phenomena at a frequency of 200,000 frames per second. The records reveal the existence of a number of shocks which by a thorough analysis of the blast wave generated by the ignition process, are shown to be due entirely to the flame generated flow field. Author

Subject Categories:

  • Explosions
  • Combustion and Ignition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE