ENVIRONMENTAL HYDRAULICS AND FLUID DYNAMICS

Fabio DENTALE ENVIRONMENTAL HYDRAULICS AND FLUID DYNAMICS

0612500035
DEPARTMENT OF CIVIL ENGINEERING
EQF6
CIVIL AND ENVIRONMENTAL ENGINEERING
2023/2024

OBBLIGATORIO
YEAR OF COURSE 2
YEAR OF DIDACTIC SYSTEM 2022
FULL ACADEMIC YEAR
CFUHOURSACTIVITY
1IDRAULICA
660LESSONS
2FLUIDODINAMICA AMBIENTALE
660LESSONS
Objectives
EXPECTED LEARNING RESULTS AND COMPETENCE TO BE ACQUIRED:
LEARNING OF THE FUNDAMENTAL PRINCIPLES OF FLUID MECHANICS AND, IN THE SPECIFIC OF HYDRAULICS, WITH PARTICULAR RELEVANCE TO THE PROBLEMS OF CIVIL AND ENVIRONMENTAL ENGINEERING: CALCULATION OF THE HYDROSTATIC THRUST ON A FLAT AND / OR INCLINED WALL, CALCULATION OF THE HYDRODYNAMIC THRUST, RESOLUTION OF PROBLEMS RELATED TO THE MOTION OF FLUIDS IN PRESSURE PIPES AND FREE SURFACE. KNOWLEDGE OF THEORETICAL TOPICS, NUMERICAL APPLICATIONS AND EXPERIMENTALS.
KNOWLEDGE AND UNDERSTANDING:
UNDERSTANDING OF TERMINOLOGY, BASIC PRINCIPLES, METHODOLOGIES AND BASIC CONCEPTS OF FLUID MECHANICS.
ABILITY TO APPLY KNOWLEDGE AND UNDERSTANDING:
KNOWING HOW TO APPROACH IN AN OPTIMAL WAY TO THE HYDRAULIC ASPECTS CONNECTED WITH THE STRESSES THAT A FLUID EXERCISED ON THE CONTAINER CONTAINING IT, THE FLUID MOTION IN PIPELINE, ARRIVING TO THE DEFINITION OF THE PIEZOMETRIC PROFILES AND THE FLUID MOTION IN FLUME OR RIVER.
AUTONOMY OF JUDGMENT:
KNOWING HOW TO IDENTIFY THE MOST APPROPRIATE METHODS TO SOLVE ENVIRONMENTAL HYDRAULIC PROBLEMS ON THE BASIS OF THE CONTEXT.
COMMUNICATION SKILLS:
BEING ABLE TO EXPOSE A TOPIC CONCERNING HYDRAULICS AND ENVIRONMENTAL FLUID DYNAMICS.
ABILITY TO LEARN:
KNOW HOW TO APPLY THE KNOWLEDGE ACQUIRED TO CONTEXTS DIFFERENT FROM THOSE PRESENTED DURING THE COURSE AND TO DEEPEN THE TOPICS TREATED USING MATERIALS OTHER THAN THOSE PROPOSED
Prerequisites
-PREREQUISITES
PRIOR ABILITY ON HOW TO MATHEMATICALLY TREAT PHYSICAL PHENOMENA IN THE CONTEXT OF CLASSICAL MECHANICS
-PROPEDEUTICITY
NONE
Contents
FUNDAMENTALS (HYDRAULICS MODULE, 6 HH OF THEORY)
PROPERTIES OF FLUIDS - PRESSURE AND SHEAR STRESS - DIFFERENTIAL EQUATION OF HYDRODYNAMIC EQUILIBRIUM.

HYDROSTATICS (HYDRAULICS MODULE, 18 HH OF THEORY + 4 HH OF CLASSROOMS)
STEVIN’S EQUATION – PRESSURE DISTRIBUTION –FORCE ACTING ON PLANE SURFACES - CENTRE OF PRESSURE – INTEGRAL EQUATION OF HYDROSTATICS - ARCHIMEDES' PRINCIPLE - FORCE ACTING ON CURVED SURFACES.

STEADY FLUID FLOWS (HYDRAULICS MODULE, 21 HH OF THEORY + 7 HH OF CLASSROOMS + 4 HH OF LABORATORY ACTIVITIES)
CONTINUITY EQUATION - BERNOULLI'S THEOREM FOR FRICTIONLESS FLUIDS - POWER OF A CURRENT: EXTENSION OF THE BERNOULLI EQUATION TO A CURRENT - FROM LAMINAR TO TURBULENT FLOWS: THE REYNOLDS’ EXPERIMENT - EQUATION OF MOTION FOR REAL FLUIDS: FRICTION AND LOCAL LOSSES - LAMINAR FLOW: POISEILLE’S FORMULA – DARCY -WEISBACH FORMULA - NIKURADSE EXPERIMENTS - SMOOTH PIPE - DEFINITION OF ROUGHNESS – MOODY CHART - PRESSURE LOSSES FORMULAE: BLASIUS, PRANDTL, VON KARMAN AND COLEBROOK-WHITE - APPLICATIONS.

STEADY FREE SURFACE FLOWS (FLUID MECHANICS MODULE, 27 HH OF THEORY + 6 HH OF CLASSROOMS + 4 HH OF LABORATORY ACTIVITIES)

DEFINITION OF A GRADUALLY VARIED FREE SURFACE FLOW – TOTAL HEAD OF A CURRENT – CRITICAL CONDITION – SUPERCRITICAL, SUBCRITICAL AND CRITICAL FLOWS – UNIFORM FLOWS: RESISTANCE FORMULAE – RATING CURVES - MILD, STEEP AND CRITICAL SLOPE – DIFFERENTIAL EQUATION OF MOTION – BACKWATER PROFILES FOR MILD, STEEP AND CRITICAL SLOPE – BACKWATER PROFILES IN CASE OF RIVER BEDS HAVING DIFFERENT SLOPES AND/OR ROUGHNESS – INLET PROBLEMS – CHANNEL OUTLET – FLOW OVER A STEP – FLOW OVER A NARROWED SECTION – FLOW OVER A GATE

FLOW OVER ORIFICES AND WEIRS (FLUID MECHANICS MODULE, 12 HH OF THEORY + 3 HH OF CLASSROOMS)

FLOW THROUGH POROUS MEDIA (FLUID MECHANICS MODULE, 6 HH OF THEORY + 2 HH OF CLASSROOMS)
Teaching Methods
THE COURSE OF 12 CFU / 120 HOURS IS PROVIDED THROUGH TWO CONSECUTIVE MODULES OF 6 CFU / 60 HOURS. EACH MODULE INCLUDES FRONT LESSONS (4.5 OF 6 CFU / MODULE) AND EXERCISES IN THE CLASSROOM AND AT THE LOCAL ENVIRONMENTAL AND MARITIME HYDRAULICS LABORATORY (LIDAM) (1.5 OF 6 CFU / MODULE).
LABORATORY EXERCISES AIM TO STIMULATE THE ABILITY OF CRITICAL JUDGMENT SKILLS AND ACTIVELY INVOLVE STUDENTS IN THE HYDRAULIC AND FLUID-DYNAMIC PROCESSES.
OVERALL, THE COURSE CONSISTS OF FRONTAL LESSONS (90 HH), CLASSROOM EXERCISES (22 HH) AND EXPERIMENTAL MEASUREMENTS (8 HH) AT THE LOCAL ENVIRONMENTAL AND MARITIME HYDRAULICS LABORATORY (LIDAM).
CLASS ATTENDANCE IS MANDATORY WITH MINIMUM ATTENDANCE RATE OF 70%
PRESENCE VERIFICATION MODE IS GENERALLY ELECTRONIC OR COMMUNICATED AT THE BEGINNING OF THE LESSONS.
Verification of learning
THE ACHIEVEMENT OF THE LEARNING OBJECTIVES IS ATTESTED WITH 2 WRITTEN TESTS (ONE PER SEMESTER, DURATION 2 HH) OR AT THE END OF THE COURSE THROUGH A WRITTEN EXAM (DURATION 2 HH) WHICH IS PREPARATORY TO THE SUCCESSIVE ORAL EXAM. TO SUCCESSFULLY UNDERGO THE ORAL EXAM, A MINIMUM SCORE OF 18/30 MUST BE ATTAINED ON THE WRITTEN EXAM.
THE ORAL EXAM WILL CONSIST OF A CONVERSATION IN WHICH POSSIBLE GAPS SHOWN DURING THE WRITTEN EXAM WILL BE SOLVED.
THE MAXIMUM SCORE CUM LAUDE WILL BE CONFERRED ON THE BASIS OF:
-THE QUALITY OF THE EXPOSITION WITH THE USE OF A PROPER SCIENTIFIC TERMINOLOGY
-THE ABILITY TO CORRELATE DIFFERENT TOPICS LEARNT DURING THE COURSE, AND POSSIBLY WITH REFERENCE TO OTHER DISCIPLINES
-THE PERSONAL JUDGEMENT SHOWN DURING THE EXPOSITION.
THE MINIMUM SCORE (18/30) AT THE ORAL EXAM WILL BE CONFERRED WHEN THE STUDENT SHOWS AT LEAST A BASIC KNOWLEDGE OF THE FUNDAMENTAL PRINCIPLES RULING HYDRAULIC AND FLUID MECHANIC PROCESSES AS WELL AS NO SEVERE HESITATION ON THE APPLICATION OF SOLVING METHODS OF HYDRAULIC SHEMES IS EXHIBITED.
Texts
V. MARONE "IDRAULICA", LIGUORI EDITORI, NAPOLI 1990.

HUGHES AND BRIGHTON - "MECCANICA DEI FLUID" ED. SCHAUM
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