Question

Determine the settling velocity in the air of a 0.5 µm diameter particle with density of 1.5 g/cm³ using the chart below. ?air = 0.00129 g/cm³ and ?air = 0.000171 g/cm/s. V_TS = (?_p * C_c * g * D_p^2) / (18 * ?) TABLE 8.3 Slip Correction Factor C_c for Spherical Particles in Air at 298 K and 1 atm D_p (µm) C_c 0.001 216 0.002 108 0.005 43.6 0.01 22.2 0.02 11.4 0.05 4.95 0.1 2.85 0.2 1.865 0.5 1.326 1.0 1.164 2.0 1.082 5.0 1.032 10.0 1.016 20.0 1.008 50.0 1.003 100.0 1.0016 What is the Reynold's Number for the flow?

          Determine the settling velocity in the air of a 0.5 µm diameter particle with density of 1.5 g/cm³ using the chart below. ?air = 0.00129 g/cm³ and ?air = 0.000171 g/cm/s.

V_TS = (?_p * C_c * g * D_p^2) / (18 * ?)

TABLE 8.3 Slip Correction Factor C_c for Spherical Particles in Air at 298 K and 1 atm
D_p (µm) C_c
0.001 216
0.002 108
0.005 43.6
0.01 22.2
0.02 11.4
0.05 4.95
0.1 2.85
0.2 1.865
0.5 1.326
1.0 1.164
2.0 1.082
5.0 1.032
10.0 1.016
20.0 1.008
50.0 1.003
100.0 1.0016

What is the Reynold's Number for the flow?

Determine the settling velocity in the air of a 0.5 µm diameter particle with density of 1.5 g/cm³ using the chart below. ?air = 0.00129 g/cm³ and ?air = 0.000171 g/cm/s.

VTS = (?p * Cc * g * Dp^2) / (18 * ?)

TABLE 8.3 Slip Correction Factor Cc for Spherical Particles in Air at 298 K and 1 atm
Dp (µm) Cc
0.001 216
0.002 108
0.005 43.6
0.01 22.2
0.02 11.4
0.05 4.95
0.1 2.85
0.2 1.865
0.5 1.326
1.0 1.164
2.0 1.082
5.0 1.032
10.0 1.016
20.0 1.008
50.0 1.003
100.0 1.0016

What is the Reynold's Number for the flow?

Added by Joseph M.

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