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Ejection of Particles from the Free Surface of Shock-Loaded Lead into Vacuum and Gas Medium |
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| Authors: | V. A. Ogorodnikov A. L. Mikhailov S. V. Erunov M. V. Antipov A. V. Fedorov M. A. Syrunin E. V. Kulakov O. A. Kleshchevnikov I. V. Yurtov A. A. Utenkov S. A. Finyushin E. A. Chudakov D. A. Kalashnikov A. S. Pupkov A. V. Chapaev A. V. Mishanov V. V. Glushikhin A. V. Fedoseev R. R. Tagirov S. A. Kostyukov I. Yu. Tagirova E. V. Saprykina |
| Affiliation: | 1.All-Russia Research Institute of Experimental Physics,Russian Federal Nuclear Center,Sarov, Nizhny Novgorod oblast,Russia;2.Sarov State Institute of Physics and Technology,Branch of the National Nuclear Research University MEPhI (Moscow Engineering Physics Institute),Sarov, Nizhny Novgorod oblast,Russia |
| Abstract: | The presence and behavior of a gas–metal interfacial layer at the free surface of shock-wave driven flying vehicles in gases of various compositions and densities has not been sufficiently studied so far. We present new comparative data on “dusting” from the free surface of lead into vacuum and gas as dependent on the surface roughness, pressure amplitude at the shock-wave front, and phase state of the material. Methods of estimating the mass flux of ejected particles in the presence of a gas medium at the free metal surface are proposed. |
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