A solution for the problem of heat transfer involving a sphere in slip flow

The relations for the heat transfer between a solid body and a gaseous medium depend on the density of the gas. Continuum-flow relations based on a use of the Navier-Stokes equations are not applicable any longer for rarefied gases. The slip-flow range is characterized by a discontinuity in the values for the flow rate of the medium and its temperature at the body surface. The reported investigation is concerned with the determination of the two parameters which characterize the heat transfer for a body which passes rapidly through a gaseous medium. These parameters include the recovery factor and the Nusselt number. Attention is given to the characteristics of the flow around a sphere, the dynamic heating of the sphere as a consequence of friction effects, the heat transfer parameters, and the temperature discontinuity.