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1) The document discusses concepts related to fluid flow kinematics including the continuity equation, energy equations, pumps, turbines, and flow through orifices. 2) Examples are provided to calculate pressure head, pipe diameter, pump power, turbine power, flow rates through drainage holes and nozzles, and orifice diameters. 3) Key variables discussed include mass, pressure, velocity, head, flow rate, efficiency, and orifice diameter as they relate to analyzing fluid flow systems.

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khantsi.t65
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13 views15 pages

C3 (Ok)

1) The document discusses concepts related to fluid flow kinematics including the continuity equation, energy equations, pumps, turbines, and flow through orifices. 2) Examples are provided to calculate pressure head, pipe diameter, pump power, turbine power, flow rates through drainage holes and nozzles, and orifice diameters. 3) Key variables discussed include mass, pressure, velocity, head, flow rate, efficiency, and orifice diameter as they relate to analyzing fluid flow systems.

Uploaded by

khantsi.t65
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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1

Chapter 3
KINEMATICS OF FLUID FLOW

3.1 Continuity Equation

Mass Mass
2

Ex 3.4
3

3.2 energy equations


4
5

Ex
Find pressure head at point B
6
Ex 3.18 Design pipe diameter
7

3.3 Pump

datum
8

Ex A pump is 60 % efficient pump from the reservoir into the


irrigation ditch 3 m wide rectangle by controlling water in
irrigation canals with the image depth. Find the pump power.

P
9

3.4 Turbine
10

Ex 3.24 Pipe D = 0.50 m Q = 2 cms Head lose 3 % of 30 m Find power of


turbine Given turbine Eff = 90 %

(1)

30 m
T (2)
11
3.5 Flow through an Orice

3.5.1 small orifice


12

Ex Leaves a water tank containing 1.8 m high tank bottom drainage hole size
diameter 50 mm , Cd = 0.60 Find the flow rate of drain hole in the case.
(A) Open the top of the tank Figure 1.
(B) Figure 2 tanks off the air pressure above the liquid was 70 kPa.
13

3.5.2 Submerged orifice

3.5.3 Flow through the large orifice


14

Ex A children catch hoses spray water up vertically. The compression at the


end of hoses and cause pressure 200 kPa at the end of pipe with speed 2 m/s
find the maximum water hmax

(2)

hmax = ?

(1)
15

Ex To provide a higher level of concrete fountains 3 m by using small


diameter nozzle fountain nozzle, which is 15 cm below the 3 m concrete form.

(A) Find a flow rate of the springs.


(B) Be designed small diameter of the open concrete channel at least.

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