No abstract

Problems associated with the thresholds for plasma production (and connected with it, the nonlinearity of microwave energy release) during irradiation of complex metal - dielectric targets by microwaves in a deep vacuum or in a high-pressure gas were studied. The discovered effect of the low threshold for plasma formation, for which no adequate model exists, may find a number of applications, in particular, in quasi-stationary current generation, gas-discharge rocket engines and microwave soldering.

No abstract

The interaction of an in¦nite microwave ¦lament and a shock layer is analyzed numerically on the basis of the Euler system of equations. The ¦lament is regarded as a heated rare¦ed channel (heat layer). Flow details for asymmetrical ¦lament location are researched including the formation of a new position of the stagnation point and the dependence of the front drag force on the ¦lament characteristics and location. The origin of a lift/pitch force in the case of zero angle of attack is discussed. This force is shown to be a function of the shift value from the symmetry axis of the heat layer and the degree of the gas rarefaction in it. The mechanism of the lift/pitch force origination is revealed. These phenomena are analyzed for blunt and pointed bodies at freestream Mach number 1.89 and a wide class of values of in¦nite ¦lament characteristics: the rarefaction factor and the disposition relative to the body.

No abstract