Figure 3.

Comparison of the present numerical results with (a) analytical data in Ref. [31] for a 2D airflow between two parallel plates. Axial fluid velocity and vertical distance from the substrate are normalized with respect to the inlet velocity of 0.3 mm/s and the channel height of 100 µm. Subsequently, (b) numerical data in Ref. [21] is shown for the mean concentration of particles with a diameter of 1 μm along two parallel plates. Distance from the entrance and particle concentration are nondimensionalized, respectively, with respect to a specific length of $3hPe/16$, and initial concentration ($C_0={10}^5/{\mathrm{m}}^2$). $Pe=2\overline{u}h/D$ is the Peclet number, and where $D \left(=2.96\times {10}^{-11 }{\mathrm{m}}^2/\mathrm{s}\right)$ is the diffusion coefficient. Finally, the (c) the numerical result of Ref. [22] for deposition rate of NPs with various diameters on the substrate of an air channel is shown.