A Savonius rotor can be approximatedby the two open half-tubes in Fig mounted ona central axis. If the drag of each tube is similar to thatin Table 7.2, derive an approximate formula for therotation rate Ω, as a function of U, D, L, and the fluidproperties (ρ, μ). Axis Ca handn frostalCohaedn fruntalfretalShupeShupeHall oylinderShapeSquar cylinderPlae:211220Thie pla-D161.7wal14HalfubeEiguilateral tiangle1.2Heugon:2320-1.0 0.7Co hamd on frental araShapeRoandel rem eienLH:10201.160900.70D6430230.9Elipial cylinderLaminar Turbulent1:1120302015025

Let, Ω = Rotation rate U = Velocity of fluid D = Diameter of half-tube L = Length of half-tube ρ =…

Answered: Axis Ca hand n frostal Cohaed n…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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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).

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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