A cylindrical block of aluminum of diameter of 50cm and height 5cm slides down a smooth inclined surface as shown in Fig. Determine the terminal velocity, steady speed achieved by an object freely falling through a fluid, of the block if the 0.1 mm gap between the block and the surface contains SAE 10 W oil at 20C. Assume the velocity distribution in the gap is linear. 0.1 mm gap 20°

A cylindrical block of aluminum of diameter of 50cm and height 5cm slides down a smooth inclined surface as shown in Fig. Determine the terminal velocity, steady speed achieved by an object freely falling through a fluid, of the block if the 0.1 mm gap between the block and the surface contains SAE 10 W oil at 20C. Assume the velocity distribution in the gap is linear. 0.1 mm gap 20°

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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Concept explainers

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

4) A cylindrical block of aluminum of diameter of 50cm and height 5cm slides down a smooth inclined
surface as shown in Fig. Determine the terminal velocity, steady speed achieved by an object
freely falling through a fluid, of the block if the 0.1 mm gap between the block and the surface
contains SAE 10 W oil at 20C. Assume the velocity distribution in the gap is linear.
0.1 mm gap
20

4.0
2.0
1.0
4
Glycerin
SAE 10W oil
1 x 101
8.
1 x 102
8
6
x 103
Water
4
2
1 x 104
8
Air
2
Hydrogen
1 x 105
60
80
100
120
-20
20
40
Temperature, °c
|| |
2.
864
2.
2.
4.
Dynamic viscosity, u, N• s/m?

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