Adhesion of Dust in an Air Flow

Abstract

On subjecting a dust-laden horizontal surface to a flow of air, the forces acting on the adhering particles include the adhesive forces Fad , the weight of the particle P, the head or frontal pressure* F_f, and the lift F _l . The conditions for the detachment of the particle may be expressed by the inequality

$$ {F_f} \geqslant \mu ({F_{ad}} + P - {F_l}) $$

((VI.1))

where μ is the coefficient of friction.