Answered: Liquid: p, 4 Ro Stationary inner…

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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Question

A rotating viscometer consists of two concentric cylinders—a stationary inner cyliner of radius R_i and an outer cylinder of inside radius R_o rotating at angular velocity (rotation rate) ?_o. In the tiny gap between the two cylinders is the fluid whose viscosity (? ) is to be measured. The length of the cylinders in Fig is L. L is large such that end effects are negligible (we can treat this as a two-dimensional problem). Torque (T) is required to rotate the inner cylinder at constant speed. Showing all your work and algebra, generate an approximate expression of T as a function of the other variables.

Liquid: p, 4
Ro
Stationary inner cylinder
Rotating outer cylinder

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