Detailed experimental data are given on the velocity and temperature distributions, friction and heat transfer in an annular channel with an inner rotating cylinder. New formulas are given which describe the velocity distribution and the friction coefficient. A scheme of calculating the heat transfer is described which is based upon an application of the hydrodynamic theory of heat exchange. The theoretical results are compared with experimental ones. (Author).

Velocity and temperature data were obtained for the annulus between a rotating inner cylinder and a stationary outer cylinder. The data were obtained for air under circumstances such that appreciable variation of the transport properties and density would occur in a turbulent flow. These data make possible a test of current theories for the behavior of turbulent, variable-property flow. (Author).

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