TY - JOUR
T1 - Research on the pressure oscillation characteristics of double pulse solid rocket motor
AU - Liu, Wei Kai
AU - He, Guo Qiang
AU - Wang, Chun Guang
N1 - Publisher Copyright:
©, 2015, BUAA Press. All right reserved.
PY - 2015/10/1
Y1 - 2015/10/1
N2 - In order to reveal the relationship between the melting of pulse separation device (PSD) and the pressure oscillation, several melting moments were selected for research. Large eddy simulation (LES) was carried out for the numerical simulation of II pulse flow field, and the pressure-time curve and fast Fourier transformation (FFT) results were obtained successfully. The analysis results show that the additional disturbance in the flow field generated by opening PSD when the II pulse is working, and the acceleration of interstage narrow channel, are the main factors to obstacle vortex shedding caused by boundary layer separation. In the early ignition, the double pulse motor (DPM)is prone to slight pressure oscillation. With the PSD melting, the whole flow field becomes more and more stabilized.
AB - In order to reveal the relationship between the melting of pulse separation device (PSD) and the pressure oscillation, several melting moments were selected for research. Large eddy simulation (LES) was carried out for the numerical simulation of II pulse flow field, and the pressure-time curve and fast Fourier transformation (FFT) results were obtained successfully. The analysis results show that the additional disturbance in the flow field generated by opening PSD when the II pulse is working, and the acceleration of interstage narrow channel, are the main factors to obstacle vortex shedding caused by boundary layer separation. In the early ignition, the double pulse motor (DPM)is prone to slight pressure oscillation. With the PSD melting, the whole flow field becomes more and more stabilized.
KW - Double pulse motor
KW - Large eddy simulation
KW - Pressure oscillation
KW - Pulse separation device
KW - Sudden closing and sudden expansion
UR - http://www.scopus.com/inward/record.url?scp=84946416771&partnerID=8YFLogxK
U2 - 10.13224/j.cnki.jasp.2015.10.031
DO - 10.13224/j.cnki.jasp.2015.10.031
M3 - 文章
AN - SCOPUS:84946416771
SN - 1000-8055
VL - 30
SP - 2553
EP - 2560
JO - Hangkong Dongli Xuebao/Journal of Aerospace Power
JF - Hangkong Dongli Xuebao/Journal of Aerospace Power
IS - 10
ER -