Experimental Study of Impactor Motion in a Sandy Medium by a Contactless Method
S. I. Gerasimov1,2,3,4, A. V. Zubankov1,2, V. I. Erofeev4, V. A. Kikeev3,4, N. A. Trepalov1, A. P. Kalmykov1, S. A. Kapinov1, A. G. Sirotkina2
1Research Institute of Experimental Physics, Sarov, 607190, Russia
2Sarov State Physics and Technical Institute, Sarov, 607190, Russia
3Nizhny Novgorod State Technical University, Nizhny Novgorod, 603950, Russia
4Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, 603024, Russia
Keywords: high-speed video recording, contactless chronographic section, sand, PIV method
Abstract
Experimental data on the motion parameters of a steel spherical impactor with a diameter of 13.5 mm that moves in a sandy medium at a velocity of 1470 m/s are presented. Induction sensors and the PIV (particle image velocimetry) method are used to record the motion of the impactor near a sandy obstacle and in a sandy medium, which allow one to visualize a surface wave via high-speed video recording of the sand surface. The values of the parameters characterizing the impactor motion in the sandy medium and the surface wave propagation are obtained.
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