Showing papers in "Journal of Applied Mechanics and Technical Physics in 1984"
TL;DR: In this article, the problem of nonstationary, nonlinear perturbations in one-dimensional granular media is stated on the basis of the wellknown interaction between neighboring granules.
Abstract: The study of mechanics of a granular medium is of substantial interest, both scientifically and for the solution of applied problems. Such materials are, for example, good buffers for shock loads. Their, study is important for the development of processes of the pulse deformation of several porous materials. A review of studies of small deformations and elastic wave propagation in these media was carried out in [i] on the basis of discrete models. The structure of a stationary shock wave was analyzed in [2] as a function of its amplitude. i. Statement of the Problem. The problem of nonstationary, nonlinear perturbations in one-dimensional granular media is stated in the present paper on the basis of the wellknown interaction between neighboring granules. As an interaction law we choose the Hertz law [3]
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TL;DR: In this article, the authors used the two-dimensional hybrid model of Golubev and Solov'ev to treat the collisionless deceleration of a cloud of plasma from a point explosion.
Abstract: In this paper the authors use the two-dimensional hybrid model of Golubev and Solov'ev to treat the collisionless deceleration of a cloud of plasma from a point explosion. Assuming that the interaction of the cloud with the surrounding dilute plasma comes about through the rotational component of the electric field, they obtain the basic deceleration mechanisms. These are supported here by numerical calculations.
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TL;DR: The thermal and force interaction between bodies and a flow of rarefied gas can be represented to a considerable extent by the momentum and energy exchange coefficients or by the equivalent accommodation coefficients as discussed by the authors.
Abstract: The thermal and force interaction between bodies and a flow of rarefied gas can be represented to a considerable extent by the momentum and energy exchange coefficients or by the equivalent accommodation coefficients. The accommodation coefficients are used when determining convective thermal fluxes and the aerodynamic characteristics of bodies under free molecular flow conditions, and are an important component of the theoretical relations irrespective of the model assumed for the interaction between the gas atoms and the surface of the solid.
TL;DR: In this article, experimental data have been derived to check some theoretical results on internal solitary waves in two different cases, where the solitary wave is generated at the interface between two thin layers of immiscible liquids with densities rho and rho2 > rho1, which are bounded below by a horizontal floor and above by a free surface.
Abstract: Experimental data have been derived to check some theoretical results on internal solitary waves in two different cases. In the first, the solitary wave is generated at the interface between two thin layers of immiscible liquids with densities rho and rho2 > rho1, which are bounded below by a horizontal floor and above by a free surface and which are at rest in the unperturbed state. In the second case, the layers were bounded above by an impermeable horizontal cover, and more importantly, there was a velocity shear between the layers in the unperturbed state.