. Author manuscript; available in PMC: 2016 Mar 7.

Published in final edited form as: Ann Occup Hyg. 2010 May 10;54(6):710–725. doi: 10.1093/annhyg/meq040

Table 1.

Geometry and associated fluid parameters

Geometry	Nose size^a	Lip size^b	Orifice shape	Mouth velocity, U_m (m s⁻¹)	Freestream velocity, U_o (m s⁻¹)	Number of fluid simulations
1	Small	Large	Rounded-rectangle	1.81 (at-rest)	0.2, 0.4	6
				4.33 (moderate)	0.2, 0.4
				12.11 (heavy)	0.2, 0.4
2	Large	Large	Rounded-rectangle	1.81 (at-rest)	0.2, 0.4	6
				4.33 (moderate)	0.2, 0.4
				12.11 (heavy)	0.2, 0.4
3	Small	Small	Rounded-rectangle	1.81 (at-rest)	0.2, 0.4	4
3	Small	Small	Rounded-rectangle	12.11 (heavy)	0.2, 0.4	4
4	Small	Large	Elliptical	1.81 (at-rest)	0.2, 0.4	4
4	Small	Large	Elliptical	12.11 (heavy)	0.2, 0.4	4

Geometry 1 is considered the baseline. Feature in bold indicates the parameter dimension that was changed in the given geometry.

The farthest position on the small nose extended 0.017061 m in front of the plane of the mouth orifice (=ΔX_o,N) and 0.009859 m anterior to the subnasale (ΔX_s,N); large extended 0.030103 m from the orifice (ΔX_o,N) and 0.022901 m from subnasale (ΔX_s,N).

The farthest position on the large lips extended 0.01256 m in front of the plane of the mouth orifice (ΔX_o,M); small extended 0.009615 m (ΔX_o,M).