On the processes of mass transport in rotating gas-dust clouds

A model of motion of gaseous matter flowing into a rotating gas-dust cloud from a central body is considered. The authors suggest an equation of matter transport and the boundary conditions for a number of cases, and also deduce relations governing the variations of concentration of the flowing matter particles in the pre-planetary gas-dust cloud, depending on distance and time. It is demonstrated that the motion of matter in rotating gas-dust clouds is governed by the classical law of mass transfer.The results obtained confirm a physico-chemical hypothesis about the formation of the planetary systems which was suggested earlier, and which is based on diffusion mechanisms of the appearance of the primary rings of the condensed matter, the rings later becoming accumulated into planets and satellites.