Document Type : Primary Research paper
Ph. D., associate Professor of the Department of higher mathematics, TSTU,
doctor of technical Sciences, Professor of the Department "Wagons and wagon economy" TSTU
in this paper, we consider the problem of particle entrainment by air flow as
the speed of a high-speed train increases. We have obtained solutions to the problem in
the case when the particles in the section have the shape of a trapezoid.