Figure 9
From: Self-cleaning of Surfaces: the Role of Surface Wettability and Dust Types

Theoretical values of Frf, Ftol and Fg as a function of WeN.
To simplify the problem, three values of (i.e., 2, 1 and 0.2) are considered to calculate Frf.
From: Self-cleaning of Surfaces: the Role of Surface Wettability and Dust Types
Theoretical values of Frf, Ftol and Fg as a function of WeN.
To simplify the problem, three values of (i.e., 2, 1 and 0.2) are considered to calculate Frf.