A viscous fluid (specific weight -80 lb/ft3; viscosity = 0.03 lb-s/ft2) is contained between two infinite, horizontal parallel plates asshown in the figure below. The fluid moves between the plates under the action of a pressure gradient, and the upper plate moves witha velocity U while the bottom plate is fixed. A U-tube manometer connected between two points along the bottom indicates adifferential reading of 0.1 in. If the upper plate moves with a velocity of 0.02 ft/s, at what distance from the bottom plate does themaximum velocity in the gap between the two plates occur? Assume laminar flow.U-0.02%10mYm01Fadplate-100/²in.

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differential reading of 0.1 in. If the upper plate moves with a velocity of 0.02 ft/s, at what distance from the bot maximum velocity in the gap between the two plates occur? Assume laminar flow. 1-0.02

differential reading of 0.1 in. If the upper plate moves with a velocity of 0.02 ft/s, at what distance from the bot maximum velocity in the gap between the two plates occur? Assume laminar flow. 1-0.02

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter26: Electromagnetism

Section: Chapter Questions

Problem 46A

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Ideal Gas Law

Ideal gas law states that the product of pressure and volume of a gas directly varies with the product of the number of moles, the universal gas constant, and the temperature of the gas.

Question

A viscous fluid (specific weight -80 lb/ft3; viscosity = 0.03 lb-s/ft2) is contained between two infinite, horizontal parallel plates as
shown in the figure below. The fluid moves between the plates under the action of a pressure gradient, and the upper plate moves with
a velocity U while the bottom plate is fixed. A U-tube manometer connected between two points along the bottom indicates a
differential reading of 0.1 in. If the upper plate moves with a velocity of 0.02 ft/s, at what distance from the bottom plate does the
maximum velocity in the gap between the two plates occur? Assume laminar flow.
U-0.02%
10m
Ym
01
Fad
plate
-100/²
in.

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