Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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Transcribed Image Text:100
80
60
40
20
10
8
2
1.0
0.8
0.6
0.4
0.2
0.1
0.08
0.06
0.04
0.02
0.01
10-2
24
Re
Sphere
40
CD
10-¹
1
Disk
Cup
* 1%8
Streamlined
body
L
10 10² 10³
Reynolds number, Re=
(
Cup
ਸਕਣ
di
106
104
Vod
105
107
Transcribed Image Text:A 40 mm diameter plastic sphere (SG =
1.5) settles in a still water body. The
required chart is as follows.
a. Find the terminal velocity at which the
sphere sinks
b. What is the Drag coefficient CD?
c. If the sphere starts to rotate
counterclockwise at a speed of 50
revolutions per second, find the
magnitude and direction of the Magnus
force on it
D
发送反馈
0.8
0.6
0.4
0.2
1
2
D
PU -D²
(0
-D Smooth sphere
L
C₁ =
Re=
@D/2U
UD
V
3
= 6 x 104
4
5
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