Instructions: 1. Clearly show your steps including formulas used in the calculation; 2. Show units of calculated variables; and 3. Underline your final answers. Probleme points): At 20°C, SAE 30 oil is deformed between two parallel plates (Fig. 1). The upper plate has an area of 0.5 m² and is moving at 6 m/s. The bottom plate is stationary. There is a 0.2 cm gap between the two plates. Consider a linear velocity distribution and calate: a) The shear stress (S) b) The required force c) The Reynolds number h Moving plate SAE 30 oil Fluid Hydrogen Air Gasoline Water Ethyl alcohol Mercury SAE 30 oil Glycerin Fixed plate Fig. 1 Flow between parallel plates H. kg/(m-s)' 8.8 E-6 1.8 E-5 2.9 E-4 1.0 E-3 1.2 E-3 1.5 E-3 0.29 1.5 P₁ kg/m³ 0.084 1.20 680 998 789 13,580 891 1,264

Instructions: 1. Clearly show your steps including formulas used in the calculation; 2. Show units of calculated variables; and 3. Underline your final answers. Probleme points): At 20°C, SAE 30 oil is deformed between two parallel plates (Fig. 1). The upper plate has an area of 0.5 m² and is moving at 6 m/s. The bottom plate is stationary. There is a 0.2 cm gap between the two plates. Consider a linear velocity distribution and calate: a) The shear stress (S) b) The required force c) The Reynolds number h Moving plate SAE 30 oil Fluid Hydrogen Air Gasoline Water Ethyl alcohol Mercury SAE 30 oil Glycerin Fixed plate Fig. 1 Flow between parallel plates H. kg/(m-s)' 8.8 E-6 1.8 E-5 2.9 E-4 1.0 E-3 1.2 E-3 1.5 E-3 0.29 1.5 P₁ kg/m³ 0.084 1.20 680 998 789 13,580 891 1,264

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

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Instructions:
1.
2.
3.
Clearly show your steps including formulas used in the calculation;
Show units of calculated variables; and
Underline your final answers.
Problem the points): At 20°C, SAE 30 oil is deformed between two parallel plates
(Fig. 1). The upper plate has an area of 0.5 m² and is moving at 6 m/s. The bottom
plate is stationary. There is a 0.2 cm gap between the two plates. Consider a linear
velocity distribution and calculate:
a) The shear stress (US)
b)
The required force
c)
The Reynolds number
(upper)
h
Moving plate
SAE 30 oil
Fluid
Hydrogen
Air
Gasoline
Water
Ethyl alcohol
Mercury
SAE 30 oil
Glycerin
Fixed plate
Fig. 1 Flow between parallel plates
fl₂
kg/(m.s)
8.8 E-6
1.8 E-5
V
2.9 E-4
1.0 E-3
1.2 E-3
1.5 E-3
0.29
1.5
P
kg/m³
0.084
1.20
680
998
789
13,580
891
1,264

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