Xiaofeng SHAO, Ningbo ZHAO, Shizheng LIU, et al. Numerical simulations of the formation and propagation of an n-decane/air rotating detonation wave[J]. Journal of Harbin Engineering University, 2024, 45(4): 730-738.
DOI:
Xiaofeng SHAO, Ningbo ZHAO, Shizheng LIU, et al. Numerical simulations of the formation and propagation of an n-decane/air rotating detonation wave[J]. Journal of Harbin Engineering University, 2024, 45(4): 730-738. DOI: 10.11990/jheu.202204003.
Numerical simulations of the formation and propagation of an n-decane/air rotating detonation wave
To investigate the formation and propagation of a gas-liquid two-phase rotating detonation wave
three-dimensional numerical simulations were conducted to discuss the formation and evolution characteristics and self-sustaining propagation mechanism of
n
-decane/air rotating detonation wave using the Euler-Lagrangian method. The results reveal that the detonation and pressure waves with different intensities can be obtained by adjusting the initial fu
el distribution during the ignition stage. In the collision stage
four collisions occurred between the detonation and pressure waves. Owing to the lack of fuel supply
the pressure wave gradually decayed and disappeared
and the detonation wave propagated in a single-wave mode. In the stable propagation stage
the unburned fuel accumulated at the contact triple point to form an unreacted gas flow region and a local explosion was induced. The periodic occurrence of the unreacted gas flow region and local explosion are important factors affecting the self-sustained propagation of two-phase detonation waves.
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