“…Hence, the study of gas fl ows carrying solid particles and the construction of the mechanics of heterogeneous media become very topical. By now, quite a voluminous theoretical and experimental material has been gathered devoted to most different aspects of the hydrodynamics and thermophysics of "gas-solid particles" heterogeneous fl ows (Abramovich et al, 1984;Babukha and Rabinovich, 1968;Babukha and Shraiber, 1972;Boothroyd, 1971;Clift et al, 1978;Crowe et al, 1998;Deich and Filippov, 1981;Dyunin et al, 1965;Friedlander, 1977;Fuks, 1955Fuks, , 1962Gorbis and Kalenderiayn, 1975;Gorbis and Spokoinyi, 1995;Gorbis, 1964Gorbis, , 1970Grishin and Fomin, 1984;Hetsroni, 1982;Mednikov, 1981;Mikhatulin et al, 2007;Nigmatulin, 1978Nigmatulin, , 1987Saltanov, 1972Saltanov, , 1979Shraiber et al, 1980Shraiber et al, , 1987Soo, 1967Soo, , 1989Sternin and Shraiber, 1994;Sternin et al, 1980;Sternin, 1974;Sukomel et al, 1977;Volkov et al, 1994;Voloshchuk and Sedunov, 1975;Voloshchuk, 1971;Wallis, 1969;Yanenko et al, 1980). Despite this fact, it can be said with confi -dence that the currently available theory of multiphase turbulent fl ows is far from completion.…”