Air Force Flight Academy

Fengcheng, China

Air Force Flight Academy

Fengcheng, China

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Zeng H.,PLA Air Force Aviation University | Zeng H.,Air Force Flight Academy | He L.-M.,PLA Air Force Aviation University | Su J.-Y.,Air Force Flight Test Train Base
Kongqi Donglixue Xuebao/Acta Aerodynamica Sinica | Year: 2013

In order to investigate the influence of cavity configuration on detonation initiation via shock wave focus, detonation initiation with different size cavities and different curvature cavities were simulated. hydrogen-air mixture was used. The results indicate that choosing cavity size should counterpoise both jet intensity and attenuation of incidence shock wave caused by cavity vacuum. Cavity curvature neither too big nor too small. In this article, the performance of portion sphericity cavity with diameter of 74 mm is best.

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