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Scientific Visualization
| Issue Year: | 2017 |
| Quarter: | 1 |
| Volume: | 9 |
| Number: | 1 |
| Pages: | 1 - 25 |
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| Article Name: |
VISUALIZATION OF SUPERSONIC MOTION OF A SPHERE IN AIR AND IN WATER |
| Authors: |
S.I. Gerasimov (Russian Federation), V.A. Kikeev (Russian Federation), K.V. Totyshev (Russian Federation), A.P. Fomkin (Russian Federation), B.A. Yanenko (Russian Federation) |
| Address: |
S.I. Gerasimov
s.i.gerasimov@mail.ru
Nizhny Novgorod State Technical University n.a. R.E. Alekseev, 603950 Russia
Russian Federal Nuclear Center – All-Russia Research Institute of Experimental Physics, 607188 Sarov, Nizhny Novgorod region, Russia
Institute of Mechanical Engineering Problems, 607350 Nizhny Novgorod , Russia
Sarov Physics and Technical Institute of National Research Nuclear University «MEPHI», 607186 Nizhny Novgorod region, Russia
National Research Nuclear University «MEPHI», 115409 Moscow, Russia
V.A. Kikeev
vkikeev@mail.ru
Nizhny Novgorod State Technical University n.a. R.E. Alekseev, 603950 Russia
Institute of Mechanical Engineering Problems, 607350 Nizhny Novgorod , Russia
K.V. Totyshev
Russian Federal Nuclear Center – All-Russia Research Institute of Experimental Physics, 607188 Sarov, Nizhny Novgorod region, Russia
A.P. Fomkin
Russian Federal Nuclear Center – All-Russia Research Institute of Experimental Physics, 607188 Sarov, Nizhny Novgorod region, Russia
B.A. Yanenko
Sarov Physics and Technical Institute of National Research Nuclear University «MEPHI», 607186 Nizhny Novgorod region, Russia |
| Abstract: |
Among various diagnostic techniques applied in ballistic experiment optical ones play foremost part inasmuch as use of contact methods in this case is extremely restricted. A modern ballistic range should be equipped with means for observation of projectile motion and visualization of flow about the projectile. Registration of projectile position in the course of the flight gives information about the projectile trajectory. On the basis of the flow pattern one makes conclusions on fundamental gasdynamic and physical phenomena following the projectile motion, such as shock wave formations, viscous flow regimes, boundary layer conditions, location of flow separation points and configuration of separation zones, base flow, and body wake. Serious tests for estimating possibilities of supersonic aeroballisic setting up have been performed. Experimental optic and x-ray images at super-and-hypersound velocities of flight and collision are demonstrated. Moving spheres of different materials have been studied. Flows around model, dependences of drug coefficient, shock curvature versus Mach number are presented. Numerical simulation has been performed. For the first time visualization of head shock in water at horizontal entrance of supersonic sphere has been recorded. |
| Language: |
Russian |
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