An-Najah National University
Faculty of Engineering & Information Technology
Mechanical Engineering Department
 
Graduation Project II


CFD Simulation of Water Distribution Network

Prepared By:
Yahya Mohammad Bani Matar
Khaled Omar
Loai Abu Shomar

Supervisor
Dr. Mahmoud Assad



Outline
Fluid
Pipe Fittings
Pipe network problems
CFD
Geometry
 Mesh 
 Results
Pressure drop
Conclusion
Future work





Fluid mechanics

Fluid mechanics is the study of the behavior of liquids and gases, and particularly the forces that they produce. 



Fluid mechanics is involved in many scientific disciplines 
 Meteorologists
  Physics
 Engineering



Pipe Fittings

What are the  pipe fittings?


Types of pipe fittings
 Elbow
 Tee
 Nipple 
 Reducer




Elbows
90-degree elbow


45-degree elbow



Tees
Tee-Joint

Y-Joint




Applications of pipe fittings
The transfer of extremely hazardous materials.
Protection of sensitive equipment from high pressures.
Protection from corrosion. 
Resistance to household and industrial chemicals.


Industries in which pipe fittings enter
Chemical / Petrochemical
Municipal
Oil and Gas
Power
Process Instrumentation
Marine & dredging
Sanitation
Residential
Road & highway construction
Ventilation etc.


Pipe network problem
 Unreasonable design
 Poor pipe network quality
Incorrect selection of insulation thickness


Reynolds Number




Laminar and Turbulent



CFD
What is the CFD?



Applications of CFD
 Aerodynamics
 HVAC 
 Heat transfer 
Pipes and valves


Advantages of CFD
 Provides a detailed understanding of flow
 Cost saving 
 Speed
 Simulate real conditions


Geometry

Pipe


Geometry

Elbow 45º


Geometry

Elbow 90º


Geometry

T-junction


Geometry

Compact wye


Geometry

Standard wye


Mesh



Mesh

Pipe


Mesh


Elbow 45º


Mesh


Elbow 90º


Mesh


T-junction


Mesh


Compact wye


Mesh


Standard wye


Results
 Pipe











Results
Elbow 45º


















Results
Elbow 90º


















Results
T-junction

















Results
Compact wye

















Results
Standard wye

















Pressure drop



Pressure drop


elbow 45	elbow 90	878	1172	Types of fittings


Pressure drop (Pa)



Pressure drop


Tee (inlet 1)	Tee (inlet 2)	compact wye (inlet 1)	compact wye (inlet 2)	standard wye (inlet 1)	standard wye (inlet 2)	2579	2699	1103	1097	1044	980	Types of fittings


Pressure drop (Pa)






Future work
 Another pipe fittings
Simple network
 Investigate the effect of turbulence modelling in the description the flow regions


Thank you 


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