Elements Of Electromagnetics

7th Edition

ISBN: 9780190698614

Author: Sadiku, Matthew N. O.

Publisher: Oxford University Press

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- Do gases usually have a constant specific weight?
- What increases in altitude is necessary in the stratosphere to halve the pressure? Assume a constant temperature of -56°C and the gas constant, R=287J/Kg/K.
- Write down the continuity law for compressible fluids.
- Describe the streamlines around a wing-shaped body.
- State the three characteristics of each of the following flows
- Laminar
- Turbulent

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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions

Determine the velocity profile within a 12 µm diameter capillary, with a viscosity of 4 cP, and a pressure gradient of 25 mm Hg/500 µm. Assume that gravitational effects can be ignored and that the blood vessel is perfectly cylindrical.

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What is the equation for the streamlines of the flow?

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What is the kind of stress applied on the illustration which has caused the fluid to create a velocity profile?
a. Shear Stress
b. Normal Stress
c. Friction

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Answer the following:
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What is Reynold’s number? What is its relevance in fluid flow.
Define viscosity and ts properties.

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A large plate is pulled at a constant speed of U = 4 m/s over a fixed plate on 5-mm-thick engine oil film at 20°C. Assuming a half-parabolic velocity profile in the oil film, as sketched, determine the shear stress developed on the upper plate and its direction. What would happen if a linear velocity profile were assumed?

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In your own words,
c. Explain why the stream function ψ is restricted to 2-D flows and you have to use the velocity potential ζ to define 3-D flows.

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Before cooking dinner, I pour oil into the center of a frying pan at a rate of 10^-6 m^3 /s. Once it hits the pan, the oil flows outwards from the center in a 2mm-thick layer, forming a perfectly circular disc. Assume the oil velocity is purely radial in this thin layer, and it is uniform in the vertical direction.
a. What is the oil velocity 5 cm from the center?
b. What is the oil velocity 10 cm from the center?
***Ps. if you can just guide me through the concept and pointing out which equation to use please***

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Explain in your own words: How does velocity affect the types of fluid flow?

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