QUESTION 5 A circular tank of diameter 80 cm contains water up to a height of 12 000 mm. The tank is provided with an orifice of diameter 0.1 m at the bottom. Find the time taken by water. (1) to fall from 12 000 mm to 2 000 m (ii) for completely emptying the tank. Take Ca = 0.57 [10] QUESTION 6 In a free cylindrical vortex flow, at a point in the fluid at a radius of 0.20 m and at a height of 0.1 m, the velocity and pressures are 10 m/s and 1.1618 atm absolute. Find the pressure at a radius of 400 mm and at a height of 200 mm. The fluid is air with density equal to 1.24 kg/m³ [10]

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
icon
Related questions
Question
100%

Fluid Mechanics 

© 31% D 7:45
Hint:
1. Use the moody chart to calculate the friction coefficients and subsequently the
head losses for both pipe cases.
2. Compare the power requirements for each scenario and use that to calculate the
savings in energy.
[20]
QUESTION 5
A circular tank of diameter 80 cm contains water up to a height of 12 000 mm. The tank
is provided with an orifice of diameter 0.1 m at the bottom. Find the time taken by water.
(i)
to fall from 12 000 mm to 2 000 m
(ii)
for completely emptying the tank. Take Ca = 0.57
[10]
QUESTION 6
In a free cylindrical vortex flow, at a point in the fluid at a radius of 0.20 m and at a height
of 0.1 m, the velocity and pressures are 10 m/s and 1.1618 atm absolute. Find the
pressure at a radius of 400 mm and at a height of 200 mm. The fluid is air with density
equal to 1.24 kg/m3
[10]
5
Formulae Sheet
Flow in pipes and Bernoulli Equation
+ z, =
+*+ 22 + h, + Ehị
pg
pg
29
Q = VA
m = pVA
5 of 10
Small Diamter + 2 (thickness) = Bigger Diameter
P2 - P = pgh
(P2 – P1)ar*
Lamina Ela Data
||
Transcribed Image Text:© 31% D 7:45 Hint: 1. Use the moody chart to calculate the friction coefficients and subsequently the head losses for both pipe cases. 2. Compare the power requirements for each scenario and use that to calculate the savings in energy. [20] QUESTION 5 A circular tank of diameter 80 cm contains water up to a height of 12 000 mm. The tank is provided with an orifice of diameter 0.1 m at the bottom. Find the time taken by water. (i) to fall from 12 000 mm to 2 000 m (ii) for completely emptying the tank. Take Ca = 0.57 [10] QUESTION 6 In a free cylindrical vortex flow, at a point in the fluid at a radius of 0.20 m and at a height of 0.1 m, the velocity and pressures are 10 m/s and 1.1618 atm absolute. Find the pressure at a radius of 400 mm and at a height of 200 mm. The fluid is air with density equal to 1.24 kg/m3 [10] 5 Formulae Sheet Flow in pipes and Bernoulli Equation + z, = +*+ 22 + h, + Ehị pg pg 29 Q = VA m = pVA 5 of 10 Small Diamter + 2 (thickness) = Bigger Diameter P2 - P = pgh (P2 – P1)ar* Lamina Ela Data ||
Expert Solution
steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Properties of Fluids
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY