Consider 0.8-cm-diameter hail that is falling freely in atmospheric air at 1 atm and 5°C. Determine the terminal velocity of the hail. Take the density of hail to be 910 kg/m3. Take the density and kinematic viscosity of air at 1 atm and 5°C as ρ = 1.269 kg/m3 and v = 1.382 × 10–5 m2/s. The figure for the average drag coefficient for cross-flow over a smooth circular cylinder and a smooth sphere is given below.Find the terminal velocity of the hail: 400200100604020104Smooth cylinder:10.60.40.2Smooth sphere -0.10.0610-110010!102103104105106Re17

Given data Diameter = 0.8 cm = 0.008 mDensity of hail = 910 kg/m3Density of air = 1.269…

Answered: Consider 0.8-cm-diameter hail that is…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Consider 0.8-cm-diameter hail that is falling freely in atmospheric air at 1 atm and 5°C. Determine the terminal velocity of the hail. Take the density of hail to be 910 kg/m³. Take the density and kinematic viscosity of air at 1 atm and 5°C as ρ = 1.269 kg/m³ and v = 1.382 × 10^–5 m²/s. The figure for the average drag coefficient for cross-flow over a smooth circular cylinder and a smooth sphere is given below.

Find the terminal velocity of the hail:

400
200
100
60
40
20
10
4
Smooth cylinder:
1
0.6
0.4
0.2
Smooth sphere -
0.1
0.06
10-1
100
10!
102
103
104
105
106
Re
17

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