TY - JOUR
T1 - 障碍物对脉冲爆震发动机填充过程的影响研究
AU - Wang, Yun
AU - Fan, Wei
AU - Jiang, Jintao
AU - Zhang, Peng
N1 - Publisher Copyright:
© 2020 Journal of Northwestern Polytechnical University.
PY - 2020/8/1
Y1 - 2020/8/1
N2 - In order to explore the influence of obstacle shapes on the filling process of pulse detonation rocket engine under valveless self-adaptive working mode, the numerical simulations of two-phase single filling process and multi-cycle experiment were carried out, in which gasoline was utilized as fuel,and oxygen-enriched air as oxidizer. The effects of four kinds of obstacles with different shapes on the filling process of PDRE were studied. The results showed that the existence of obstacles blocks the filling of fuel into the tail of detonation tube, resulting in a great non-uniformity of filling results in the axial and radial directions. Fuel droplets collect near the head and wall of detonation tube, and droplets are seriously blocked by orifice plates. The detonation initiation and stable propagation can be achieved by Shchelkin spirals, annular grooves and spiraling grooves, while the detonation initiation cannot be achieved by orifice plates.
AB - In order to explore the influence of obstacle shapes on the filling process of pulse detonation rocket engine under valveless self-adaptive working mode, the numerical simulations of two-phase single filling process and multi-cycle experiment were carried out, in which gasoline was utilized as fuel,and oxygen-enriched air as oxidizer. The effects of four kinds of obstacles with different shapes on the filling process of PDRE were studied. The results showed that the existence of obstacles blocks the filling of fuel into the tail of detonation tube, resulting in a great non-uniformity of filling results in the axial and radial directions. Fuel droplets collect near the head and wall of detonation tube, and droplets are seriously blocked by orifice plates. The detonation initiation and stable propagation can be achieved by Shchelkin spirals, annular grooves and spiraling grooves, while the detonation initiation cannot be achieved by orifice plates.
KW - Filling process
KW - Numerical simulation
KW - Obstacle shape
KW - Pulse detonation rocket engine
KW - Two-phase flow
UR - http://www.scopus.com/inward/record.url?scp=85091271907&partnerID=8YFLogxK
U2 - 10.1051/jnwpu/20203840784
DO - 10.1051/jnwpu/20203840784
M3 - 文章
AN - SCOPUS:85091271907
SN - 1000-2758
VL - 38
SP - 784
EP - 791
JO - Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University
JF - Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University
IS - 4
ER -