Q.2//B// The standard air velocity in a 0.4 m diameter duct is 7 m/s. The duct expands to a rectangular cross section of 0.4×0.8 m as shown in Figure below. Where the kinematic viscosity of air 1.78×10 m/s. Determine: (i) the velocity of the air in the rectangular duct, (ii) mass flow rate of air in circular duct, (iii) Reynolds number of the air flowing in the rectangular duct, where the equivalent diameter equal: D = 1.26 a³b³\5 a+b 04m Flow 1 V₁ = 7 m/s Flow 2

Q.2//B// The standard air velocity in a 0.4 m diameter duct is 7 m/s. The duct expands to a rectangular cross section of 0.4×0.8 m as shown in Figure below. Where the kinematic viscosity of air 1.78×10 m/s. Determine: (i) the velocity of the air in the rectangular duct, (ii) mass flow rate of air in circular duct, (iii) Reynolds number of the air flowing in the rectangular duct, where the equivalent diameter equal: D = 1.26 a³b³\5 a+b 04m Flow 1 V₁ = 7 m/s Flow 2

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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Concept explainers

Pressurized pipe flow

A 15-kilometer-long pipe with a pipe diameter of one meter transports water at a speed of one meter per second. The pipe has a friction coefficient of 0.005. Calculate the frictional head loss?

Question

Q.2//B// The standard air velocity in a 0.4 m diameter duct is 7 m/s. The duct expands to a
rectangular cross section of 0.4×0.8 m as shown in Figure below. Where the kinematic viscosity
of air 1.78×105 m²/s. Determine: (i) the velocity of the air in the rectangular duct, (ii) mass flow
rate of air in circular duct, (iii) Reynolds number of the air flowing in the rectangular duct, where
the equivalent diameter equal:
D = 1.26
a³b³
a+b
0.4m
Flow 1
v₁ = 7 m/s
Flow 2
V/₂
0.4mx08m

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