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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

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

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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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: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
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
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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