Axis Ca hand n frostal Cohaed n fruntal fretal Shupe Shupe Hall oylinder Shape Squar cylinder Plae: 21 12 20 Thie pla -D 16 1.7 wal 14 Halfube Eiguilateral tiangle 1.2 Heugon: 23 20 -1.0 0.7 Co hamd on frental ara Shape Roandel rem eien LH: 10 20 1.16 090 0.70 D64 30 23 0.9 Elipial cylinder Laminar Turbulent 1:1 12 03 02 015 025

International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter9: Moments And Products Of Inertia Of Areas
Section: Chapter Questions
Problem 9.46P
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Question

A Savonius rotor can be approximated
by the two open half-tubes in Fig  mounted on
a central axis. If the drag of each tube is similar to that
in Table 7.2, derive an approximate formula for the
rotation rate Ω, as a function of U, D, L, and the fluid
properties (ρ, μ).

Axis
Transcribed Image Text:Axis
Ca hand
n frostal
Cohaed
n fruntal
fretal
Shupe
Shupe
Hall oylinder
Shape
Squar cylinder
Plae:
21
12
20
Thie pla
-D
16
1.7
wal
14
Halfube
Eiguilateral tiangle
1.2
Heugon:
23
20
-1.0 0.7
Co hamd on frental ara
Shape
Roandel rem eien
LH:
10
20
1.16
090
0.70
D64
30
23
0.9
Elipial cylinder
Laminar Turbulent
1:1
12
03
02
015
025
Transcribed Image Text:Ca hand n frostal Cohaed n fruntal fretal Shupe Shupe Hall oylinder Shape Squar cylinder Plae: 21 12 20 Thie pla -D 16 1.7 wal 14 Halfube Eiguilateral tiangle 1.2 Heugon: 23 20 -1.0 0.7 Co hamd on frental ara Shape Roandel rem eien LH: 10 20 1.16 090 0.70 D64 30 23 0.9 Elipial cylinder Laminar Turbulent 1:1 12 03 02 015 025
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