P6.2 A 1:80 scale model of an aircraft was tested in air at 20C°moves with speed 40m/sa- What is the speed model if its submerged in water at 26C°,Vair = 14.86 * 10-6 mVwater = 0.864 * 10-6"m2[V=2.325 m/s]b- Determine the air resistance to the prototype if model water resistance is 7.43N.[Fp=2.643 N]

Given, The velocity of the prototype in air, The kinematic viscosity of air, The kinematic…

P6.2 A 1:80 scale model of an aircraft was tested in air at 20C°moves with speed 40m/s a- What is the speed model if its submerged in water at 26C°, m2 Vair = 14.86 10-6. b- Determine the air resistance to the prototype if model water resistance is 7.43N. [Fp=2.643 N] ;Vwater = 0.864 10-6 m [V=2.325 m/s]

P6.2 A 1:80 scale model of an aircraft was tested in air at 20C°moves with speed 40m/s a- What is the speed model if its submerged in water at 26C°, m2 Vair = 14.86 10-6. b- Determine the air resistance to the prototype if model water resistance is 7.43N. [Fp=2.643 N] ;Vwater = 0.864 10-6 m [V=2.325 m/s]

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.

Question

P6.2 A 1:80 scale model of an aircraft was tested in air at 20C°moves with speed 40m/s
a- What is the speed model if its submerged in water at 26C°,
Vair = 14.86 * 10-6 m
Vwater = 0.864 * 10-6"
m2
[V=2.325 m/s]
b- Determine the air resistance to the prototype if model water resistance is 7.43N.
[Fp=2.643 N]

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