FLUID AND GAS DYNAMICS IN TECHNOLOGICAL PROCESSES

INVESTIGATION OF THE PRESSURE PULSATIONS
DOWNSTREAM OF THE FRONT OF A GAS DETONATION WAVE

O. G. Penyaz'kov and K. L. Sevruk

UDC 533.6:621.373

A new method is proposed for diagnostics of the cellular 
structure of a detonation wave on the basis of recording of the gas-pressure 
pulsations in the shock-wave stub downstream of the front of this 
wave with the use of piezoelectric transducers. Spectral analysis 
of the signals recorded allows one to exactly determine the range 
of possible sizes of a detonation cell and the probability-distribution 
function of the cellular-structure states.

A. V. Luikov Heat and Mass Transfer Institute, National 
Academy of Sciences of Belarus, 15 P. Brovka Str., Minsk, 220072, 
Belarus; email: sevrouk@dup.itmo.by. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 79, No. 1, pp. 77-80, January-February, 2006. 
Original article submitted October 20, 2004.