A spherical particle of diameter D = 10 mm is suspended by a thin wire within a cylindrical tube of inner diameter D2 = 30 mm an length L = 0.5 m. A4 A2 -D2 - A1 - A3 Determine the view factors F11,F12, F13, and F14 for S = 80 mm. The view factor between the sphere and the bottom end of the tube (a disk of radius r3) is F13 = 0.5|1– (1+ R;)~2 where R3 = r3/S. -1/2)

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Chapter8: Natural Convection
Section: Chapter Questions
Problem 8.44P
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A spherical particle of diameter D = 10 mm is suspended by a thin wire within a cylindrical tube of inner diameter D2
length L = 0.5 m.
= 30 mm anc
A4
A2
D2
L.
-A1
-A3
Determine the view factors F11, F12, F13, and F14 for S = 80 mm. The view factor between the sphere and the bottom end of the
tube (a disk of radius r3) is F13 = 0.5 1 – (1 + R)-2 where R3 = r3/S.
F11 =
i
F12 =
i
F13 =
i
F14 =
Transcribed Image Text:A spherical particle of diameter D = 10 mm is suspended by a thin wire within a cylindrical tube of inner diameter D2 length L = 0.5 m. = 30 mm anc A4 A2 D2 L. -A1 -A3 Determine the view factors F11, F12, F13, and F14 for S = 80 mm. The view factor between the sphere and the bottom end of the tube (a disk of radius r3) is F13 = 0.5 1 – (1 + R)-2 where R3 = r3/S. F11 = i F12 = i F13 = i F14 =
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