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Journal of Applied Mechanics and Technical Physics

2019 year, number 3

ANALYSIS OF ENERGY CAPABILITIES OF ACCELEREATION OF MAASSIVE BODIES BY GAS-DYNAMIC METHODS

V. M. Fomin, V. I. Zvegintsev, E. Ya. Braguntsov
Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: прямоточный ускоритель, метаемое тело, разгонный ствол, газовая горючая смесь, ramjet-in-tube projectile accelerator, accelerated body, acceleration barrel, gaseous combustible mixture

Abstract

The energy capabilities of acceleration devices are theoretically analyzed, including various ramjet-in-tube options for gas-dynamic acceleration of massive (1 to 40 kg) bodies under ground conditions up to velocities of 2-3 km/s. Simple quasi-one-dimensional models for a perfect gas are used in the computations. It is demonstrated that the use of a ramjet-in-tube with a closed exit allows the velocities of acceleration of massive bodies to be increased to 3 km/s, which is twice greater than the values that can be obtained with available gunpowder-based methods.