INTRODUCTORY
HYDRAULICS
(GENERAL HYDRAULICS)
(SYLLABUS)
University of Petrosani
Faculty: The Faculty of Mechanical and Electrical Engineering
Programm Level: Undergraduate
Specialization(s):
Mining Engineering
Number of ETCS credits awarded:
4
Class Ob
jectives:
The course objective is to address in a natural sequence most representative concepts related
to chapters: static
s
, kinematics, and dynamics.
Students will assimilate knowledge about
the laws that govern fluid motion and re
st
,
metho
ds
of study
a
s well as their technical applications.
Learning and applying the concepts, methods, techniques and tools for basic exploration of
field of
hydraulics
.
Lectures
content:
Content
Number of lectures
Introduction
.
The
concept of
fluid
.
Continuity
hypothe
sis
.
U
nits
.
Dimensional
analysis
and
similitude
(
dimensional analysis).
1
Dimensional
analysis
and
similarity
(
similarity).
The
physical properties
of
fluid
(
density
and specific weight
,
specific volume
,
compressibility
,
thermal
expansion
).
1
Physical
pr
operties of the fluid (
equation of state
,
cavitation, surface tension,
capillarity, the formation of droplets).
1
Transport
phenomena.
Fluid statics. Principle of solidification.
1
Euler's
equation.
Static
pressure head.
General equation for variation of
pressure in a static fluid
.
Consequences of equilibrium equations.
Variation of
pressure vertically in a fluid under gravity
.
Consequences of hydrostatic law.
1
The energetic interpretation
of hydrostatic
law.
Geometric
and graphical
interpretation
of th
e law
of hydrostatics
.
Pressure
diagram
s
.
Forces on planar
bodies.
1
Forces
on curved bodies. Buoyant forces on submerged bodies.
Determination
of the volume of a body by weighing.
Floating
bodies
. Initial
stability of
floating and submerged bodies.
1
Re
lative location of reference points
.
Meta

centre. Meta

centric height.
Methods
of improving initial stability.
Densitometry
.
Relative equilibrium of
fluids.
1
Relative
equilibrium of a liquid in a vessel rotating around a vertical axis.
Relative equilibri
um of a liquid in a vessel involved in a translational
movement. Kinematics of fluid. Kinematic parameters. Lagrangian
and
E
ulerian specifications.
1
The particle
d
erivative
.
Streamline
, path line and streak line
.
Linear
and shear
strain rate.
Vorticity a
n circulation.
1
Stokes's theorem.
Flow rate
,
average speed.
Continuity equation.
Fluid
dynamics. Euler's equation.
1
Bernoulli's
equation for an ideal fluid.
Geometric
explanation of B
ernoulli's
equation.
The fundamental equation of the turbo machines.
Applications
of
Be
rnoulli's equation for incompressible ideal fluid (orifice in a tank,
Pitot tube,
P
itot

Prandtl tube
).
1
Applications
of Be
rnoulli's equation for incompressible ideal fluid (
V
enturi
tube, ejector).
Momentum
theorem.
Conservation
of momen
tum. Momentum
1
principle for a fixed volume. Angular momentum principle for a fixed volume.
Applications
:
jet action on walls, E
uler's equations for turbines.
Navier

S
tokes
equation.
Pipe
flow.
Energy
losses in pipe flow.
Local
losses.
Problems
1
Prac
tical class content:
Content
Number of classes
Safety procedures. Lab induction. Work procedures
.
1
Viscosity measurements.
1
Checking the accuracy class of manometers.
1
Checking the accuracy class of
vacuummeters.
1
Mano

vacuummetric panel.
1
Reynolds experiment.
Laminar and turbulent f
low
.
1
Jet action on walls
1
Flow rate
m
easuring
using
diaphragm.
1
Flow rate m
easuring
using
rotameters
.
1
Calibration
of a diaphragm using
Pitot

Prandtl
tube.
1
Differential pressure gauge.
1
Multipl
e fluid p
ressure
gauge
.
1
Flow rate m
easuring
using
u
ltrasonic clamp

on flow meter
.
1
Final evaluation and testing for practical classes.
1
Grading Policy:
The student pass
the class if obtain more than 50
points
from 100 points
.
Classroom Rules o
f Conduct:
Turn off (or place on vibrate) cell phones and pagers during class
Food and beverages are not permitted in classroom
During exams, the use of cell phones, pagers, PDAs, or any other electronic devices is strictly
prohibited
Lecturer:
Ion DOSA
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