There is a simplest explaination of fluid mechanics

2. Fluid Mechanics
Dr. Eng. Ezzat el sayed G. SALEH
Civil Eng. Dept.
El Minia University

4. Our ideas about
scenic beauty leads
us to:
oDecorate our city centers with
fountains, our gardens with
fishponds, and our homes with
liquid-filled lamps.
o Fill out picture calendars with
views of waterfalls, rivers, lakes
and seas.
o Stand at the seashore and spend
hours watching waves breaking on
the rocks.
Why we study fluid mechanics?

5. Children:
oThey build dams in country streams
and moats around seaside
sandcastles.
oDelight in playing with soap bubbles,
with toy yachts, and with kites and
paper airplanes.
Why we study fluid mechanics?

6. Adults:
oSwimming in an international
pastimes, and many sports- golf,
baseball, cricket, tennis (involve
fluid mechanics phenomena
causing balls to swerve in flight).
o Share there pleasures, though often
on a grander scale, using sea-going
yachts and hang-gliders for
example.
Why we study fluid mechanics?

7. Many
engineers are
also
fascinated by
fluid motions,
but they have
additional
reasons for
there interest, o Rivers and oceans are used for
transportation.
o Winds, tides and waves are
potential sources of power.
o Water deposition on hillsides as
rain and snow is vital to our
domestic needs.
Fluid Properties
Why we study fluid mechanics?

8. Many
engineers are
also
fascinated by
fluid motions,
but they have
additional
reasons for
there interest,
o Rivers require frequent dredging to
prevent the closing of navigable
channels by the deposition of sill..
o Sometimes the engineers' task is
to pit their wits against nature.
Walls and harbors are needed to
protect coastline and vessel from
the destructive power of the sea.
o Bridges and tall buildings must
withstand gale-force winds..
Why we study fluid mechanics?

9. Many
engineers are
also
fascinated by
fluid motions,
but they have
additional
reasons for
there interest,
:
oLubrication must be provided to
reduce friction and wear in metal
surfaces moving past each other at
very high speeds.
oVehicles must be shaped to move
through air with minimum drag.
Why we study fluid mechanics?

10. Matter Water
Solid
Fluids
II- Fluid Properties
A-State of Matter
Dr. Ezzat,
Gas

12. A Solid can resist a shear stress by a static deflection
A Fluid
being composed of relatively closed-packed
molecules with strong cohesive forces, tends
to retain its volume and will form a free surface

15. Archimedean screw pump in Egypt
( Positive displacement pump).
Hand pump in village in the
Gambia
Hand pump in village in the
Namibia
The city hall and the fountain -
Marie de Hongrie . (Belgium).

16. Wind Energy

18.  Fish passes
 Residual flow

19. Clean Energy, Clean Nature

20. A FRONT VIEW OF VICTORIA LACK

21. Waterfall at Nile Sources

22. Meandering of River Nile at SUDAN

24. Max. length = 550 km
Max. width = 35 km
Surface area = 5250 km2
Water volume 132 km2
Shore length = 7844km
Surface elevation = 183 m
Lack Nasser

27. River Nile Through EGYPT

36. Dialy Dam in IRAQ

37. Spillway Stilling Basin with Arched Road Bridge

41. 25/02/1444 41
Pipes in Parallel

42. Three Gorges Dam, China, Yangtze River

48. Ecology Friendly

49. Archeology
Twin temples of Pharaoh Remises II relocated by UNESCO

51. THANK YOU