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The combustion of a model high-density propellant (MHP) under the conditions of a closed volume has been investigated. A description is given of the main components and mechanisms of the manometric bomb being used. Procedures are described for determining the laws of propellant combustion in a manometric experiment, and a comparison is made of computational-experimental data. The distinctive features of the formation of an MHP combustion surface in various containers have been identified and described. The dependences of the layer combustion velocity of two model high-density propellants on pressure have been determined. [ABSTRACT FROM AUTHOR]

Results are presented of an experimental-theoretical investigation of the motion in water of supercavitating strikers made of steel and aluminum and tungsten (TNI, i.e., tungsten, nickel, and iron) alloys in a broad velocity range. Estimates have been made of the ranges of velocities of entry into water in which the investigated supercavitating strikers from various materials are not destroyed and preserve the original shape. Experimental and computational data have been obtained on the value of deviation of the trajectories of two simultaneously starting from each other supercavitating strikers at the initial stage of their group motion in water depending on the materials they are made of. [ABSTRACT FROM AUTHOR]