Study of singular points of motion equations of aerosol particles for problem of aspiration into cylindrical sampler. (Russian. English summary) Zbl 1158.76413

Vanyunina, M. V.; Zaripov, S. K.; Skvortsov, E. V.

Uch. Zap. Kazan. Gos. Univ., Ser. Fiz.-Mat. Nauki 148, No. 2, 23-30 (2006).

Summary: The results of the study of singular points of motion equation of aerosol particles in the vicinity of cylindrical sampler at the aspiration from calm and moving air are presented. The coordinates of singular points as a function of settling velocity, relative size of input orifice and angle of sampler orientation relatively to wind and gravity force directions are investigated analytically and numerically. The criteria of existence of one or two singular points in the solution region are obtained. It is shown that the number of singular points doesn’t depend on the wind flow.

MSC:

76M25	Other numerical methods (fluid mechanics) (MSC2010)
76T15	Dusty-gas two-phase flows