Air with a specific weight of 11.1 N/m³ and a dynamic viscosity of 1.8 x 10> Pa.s flows through the shaded portion of the duct shown below at the rate of 164 m3/h. If a = 50 mm, b = 93 mm and c = 51 mm, calculate the hydraulic radius in mm. a 25 mm inside diameter, 5 mm thickness

Air with a specific weight of 11.1 N/m³ and a dynamic viscosity of 1.8 x 10> Pa.s flows through the shaded portion of the duct shown below at the rate of 164 m3/h. If a = 50 mm, b = 93 mm and c = 51 mm, calculate the hydraulic radius in mm. a 25 mm inside diameter, 5 mm thickness

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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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

Air with a specific weight of 11.1 N/m3 and a dynamic viscosity of 1.8 x 105 Pa.s flows through the shaded portion of the duct shown below at the rate of
164 m3/h. If a = 50 mm, b = 93 mm and c = 51 mm, calculate the hydraulic radius in mm.
b
25 mm inside
diameter,
5 mm thickness

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