Accession Number:

ADA017574

Title:

The Development of an Optically Active Laser Schlieren System with Application to High Pressure Solid Propellant Combustion.

Descriptive Note:

Final rept.,

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s):

• Andrews,James R.
• Netzer,David W.

Report Date:

1975-09-01

Pagination or Media Count:

43.0

Abstract:

A laser schlieren system, using an optically active quartz prism-polaroid sheet combination aperture in place of the conventional knife edge, was developed and applied to high pressure solid propellant combustion studies. Advantages and limitations of the system are discussed. Ammonium perchlorate deflagration was observed to pressures of 2200 psi. Distant surface reaction sites were evidenced at high and low pressures by alternating density gradients in the gas across the deflagrating surface. These sites were found to be very small or nonexistent at intermediate pressures.

Descriptors:

• *Solid rocket propellants
• *Combustion
• *Schlieren photography
• Laser beams
• Gas flow
• Ignition
• Burning rate
• Apertures
• Feasibility studies
• Argon lasers
• Ammonium perchlorate

Subject Categories:

• Photography
• Combustion and Ignition
• Solid Rocket Propellants

Distribution Statement:

APPROVED FOR PUBLIC RELEASE