Abstract:
Combustion instability is a phenomenon which is very common in large solid rocket motors. It is experienced when unstable combustion occurs. Instability is highly undesirable due to the occurrence of several unwanted phenomena in the presence of instability. These phenomena can cause damage to vehicle and thus mission failure. Thus instability is a condition that must be avoided and must be carefully investigated and remedied during the development phase of the motors. Combustion instabilities are inherent in the large segmented rocket motors. In Europe MPS230, the solid rocket booster of ARIANE 5 launcher is the largest rocket motor and it faces the same problems of pressure and thrust oscillations during combustion. Therefore experimental and numerical research works are being conducted to better understand and resolve these problems. That`s why a number of scaled motors of MPS230 with different configurations have been tested to investigate more comprehensively the origin of instability problems and to find the techniques to suppress and control them, LP9 is one of these statically tested scaled motors (1:35 scale). The LP9 motor was statically tested with three different grain/nozzle configurations and combustion instabilities were observed to take place. This work focuses on verifying the experimental results by simulating the flow inside LP9 motor using Fluent Software.
Page(s):
46-59
DOI:
DOI not available
Published:
Journal: Proceedings 5th International Bhurban Conference on Applied Sciences and Technology , Volume: 0, Issue: 0, Year: 2007