The use of heterogeneous mechanics for modeling a gas-dust protoplanetary disk: 1. The laminar stage of subdisk formation

In the present work, in relation to the problem of reconstructing the evolution of a pre-planetary gas-dust cloud, a model of a turbulent heterogeneous medium is developed, on the basis of which it is possible to construct a new class of numerical models of space gas-dust media, taking into account the influence on the nature and development of turbulence of the inertial properties of the polydisperse dust mixture, heat and mass transfer, and coagulation, phase transitions, chemical reactions and radiation. This allows you to significantly expand the possibilities of numerical modeling of various physical and chemical phenomena in such complex space media as accretion gas-dust disks formed in stars of various classes during their differential rotation around the center of gravity, in particular, to study their structure, physicochemical and hydrodynamic properties and temporary evolution.