The book deals with the development of continual models of turbulent
natural media. Such models serve as a ground for the statement and
numerical evaluation of the key problems of the structure and evolution
of the numerous astrophysical and geophysical objects. The processes of
ordering (self-organization) in an originally chaotic turbulent medium
are addressed and treated in detail with the use of irreversible
thermodynamics and stochastic dynamics approaches which underlie the
respective models. Different examples of ordering set up in the natural
environment and outer space are brought and thoroughly discussed, the
main focus being given to the protoplanetary discs formation and
evolution.