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There two parallel discs, one is up and another is down, whose diameters are both d. The thickness of the gap between the two discs is ô. The dynamic viscosity coefficient of the liquid in the gap is µ. The below disc is fixed. The above disc rotated around the axis at the angular velocity o. How much is the torque to make the disc rotate?

There two parallel discs, one is up and another is down, whose diameters are both d. The thickness of the gap between the two discs is ô. The dynamic viscosity coefficient of the liquid in the gap is µ. The below disc is fixed. The above disc rotated around the axis at the angular velocity o. How much is the torque to make the disc rotate?

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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There two parallel discs, one is up and another is down, whose diameters are both d. The thickness of the gap between the two discs is ô. The dynamic viscosity coefficient of the liquid in the gap is µ. The below disc is fixed. The above disc rotated around the axis at the angular velocity o. How much is the torque to make the disc rotate?
Transcribed Image Text:There two parallel discs, one is up and another is down, whose diameters are both d. The thickness of the gap between the two discs is ô. The dynamic viscosity coefficient of the liquid in the gap is µ. The below disc is fixed. The above disc rotated around the axis at the angular velocity o. How much is the torque to make the disc rotate?
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