Accession Number:

AD0637160

Title:

ACOUSTIC INSTABILITY IN COMBUSTION

Descriptive Note:

Technical rept.

Corporate Author:

UTAH UNIV SALT LAKE CITY DEPT OF CHEMICAL ENGINEERING

Personal Author(s):

Report Date:

1966-08-01

Pagination or Media Count:

187.0

Abstract:

Acoustic instability in solid propellant rockets is observed as a high-amplitude oscillation in the acoustic modes of the gas cavity, the combustion processes providing the driving energy. In general, the solid phase, i.e., the propellant, participates in the wave behavior. In this work, the behavior of both the gas phase and the solid phase were experimentally studied in a side-vented end burner. When the burner was operated with a grain in only one end, a difference in acoustic pressure amplitudes not previously reported was observed. The phenomenon was confirmed and studied in some detail. It does not affect the data used to calculate acoustic admittance values.

Subject Categories:

  • Combustion and Ignition
  • Solid Propellant Rocket Engines
  • Solid Rocket Propellants

Distribution Statement:

APPROVED FOR PUBLIC RELEASE