We extend an analytical solution for the problem of diffraction of a plane wave by a spherical particle to the case of an inhomogeneous wave. Numerical examples showing a significant change in the scattered-wave structure compared with the case of diffraction of a homogeneous wave are presented.
A two-dimensional computational model is suggested for the calculation of radiative-convective heat transfer in the channel of an MHD generator with a self-sustaining current layer (T-layer). The calculation results demonstrate that the characteristic features of the T-layer dynamics include the development of hydrodynamic instability of the Rayleigh-Taylor type and the flow of electrically nonconducting gas past the discharge region. These physical mechanisms lead to irregularity and nonstationarity of flow in the channel; in so doing, the discharge region changes its structure periodically and exists both as several currentconducting channels and as a unified plasma formation.
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