FLAME PROPAGATION INTO THE GAP OF SOLID PROPELLANT GRAIN (I), BY T. GODAI. NATIONAL AEROSPACE LABORATORY, TOKYO, JAPAN, REPORT NO. 91, PP. 1-12 (1965).
Abstract
The flame propagation into a narrow gap, which is prepared perpendicular to the prime burning surface of solid propellant grain, has been experimentally investigated using the test specimens of polyester-ammonium perchlorate composite propellants. Experimental results show that the flame propagates from the original burning surface into a gap when its width is larger than some critical value, and vice versa. This means that there always exists the critical value for the width of gap which is the threshold of propagation and nonpropagation of flame into it. The critical value is primarily the function of linear burning rate and the over-all mechanism of flame propagation into a gap of solid propellant grain will be explained with the quenching theorem. It is expected that further work will give a useful measure to the setting of standards of nondestructive testing of solid propellant grains and motors. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 31, 1967
- Accession Number
- AD0822050