To the Investigation of MHD Flows in Channels with the Use of One-Dimensional Models. Part 1

Quasi-one-dimensional model of MHD flow in coaxial channel is considered. The correlations between the integral characteristics of transonic flows are analyzed. The conditions are discussed under which they may be used. On the basis of quasi-one-dimensional theory the formulas approximating the dependencies of the integral parameters of two-dimensional flows on the discharge current are constructed. The estimates of the coefficients of acceleration and compression are improved.