Transient processes of heat exchange in an air-plasma jet

The results of an experimental investigation of transient processes of nonsteady heat exchange in a high-temperature air stream are presented.Notation R radius of thermocouple junction, m - a thermal diffusivity, m²/sec - _th thickness of thermal boundary layer, m - thermal conductivity of gas, J/m·sec·deg - heat-transfer coefficient, W/m²·deg Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 41, No. 3, pp. 520–523, September, 1981.