Certain problems related to the aerodynamics of the gravity flow of a finely dispersed free-flowing material

We present the results from theoretical and experimental investigations into the determination of the velocities of vertically incident particles for Re < 2000 and for the volumes of air ejected by a stream of a free-flowing material being transferred through closed troughs.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 16, No. 6, pp. 1045–1051, June, 1969.