# INTRODUCTORY HYDRAULICS (GENERAL HYDRAULICS)

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31 Οκτ 2013 (πριν από 4 χρόνια και 6 μήνες)

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INTRODUCTORY

HYDRAULICS

(GENERAL HYDRAULICS)

(SYLLABUS)

University of Petrosani

Faculty: The Faculty of Mechanical and Electrical Engineering

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.

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
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

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