The 12th International Conference on Hydrodynamics
18 – 23 september 2016, Egmond aan Zee, The Netherlands
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EXPERIMENT ON CAVITATING FLOW AROUND AN AXISYMMETRIC PROJECTILE NEAR THE FREE SURFACE


Go-down ichd2016 Tracking Number 111

Presentation:
Session: Cavitation and cavitating flows II
Room: Room 4
Session start: 16:00 Tue 20 Sep 2016

Xiaocui Wu   wuxiaocui@imech.ac.cn
Affifliation:

Yiwei Wang   wangyw@imech.ac.cn
Affifliation:

Chenguang Huang   huangcg@imech.ac.cn
Affifliation:


Topics: - Cavitation and cavitating flows

Abstract:

The typical experiment on the cloud cavitating flow around an axisymmetric projectile near the free surface is carried out in a Split-Hopkinson pressure bar (SHPB) launching system in this paper. An axisymmetric projectile with flat head is tested. The trajectory and cavitations’ features are obtained with different distances from the free surface and the projectile. The development of the cavity length and the effect of free surface are discussed. The free surface can delay the shed process of the cavity on the upper side, which will cause the length differce between the upper and down side. With the decrement of distance from the free surface and the projectile, the cavity length on the upper side increase.