Fluid Mechanics I

Code:

EA0022

Acronym:

MF I

Keywords
Classification	Keyword
OFICIAL	Physical Sciences (Physics)

Instance: 2014/2015 - 1S

Active?	Yes
Responsible unit:	Fluids and Energy Section
Course/CS Responsible:	Master in Environmental Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
MIEA	123	Syllabus since 2006/07	2	-	6	56	162

Teaching language

Portuguese

Objectives

Analyse, understand and characterize, based on fundamental laws of mechanics and using specific methodologies, the behaviour of fluids at rest and in motion, in view of solving problems of fluid mechanics in engineering.

Learning outcomes and competences

It is expected that, at the end of the semester, students will be able to/know:
1. Characterize fluids in terms of their properties and to solve simple problems involving Newton's viscosity law;
2. Apply the principles of the static of fluids to manometry and to the characterization of pressure forces on flat immersed surfaces;
3. Apply the equations of conservation of mass, energy and linear momentum to ideal fluid flows;
4. Use dimensional analysis and similarity principles in fluid mechanics problems;
5. Apply the equations of conservation of mass and energy to flows in ducts, calculate pressure losses, energy requirements and available flow, and dimensioning simple ducts;
6. Characteristic curves of pumps and fans in order to correctly select these equipments;
7. Characterize the forces resulting from the interaction of flows with immersed bodies.

Working method

Presencial

Program

1. Introduction. Concept of fluid and fluid properties. Newton's viscosity law.
2. Statics of fluids. Fundamental equation of hydrostatics. Manometry. Forces on flat immersed surfaces. Buoyancy.
3. Kinematics of flows. Velocity field. Lagrangean and Eulerian perspectives. Flow rate and average speed.
4. Integral formulation. Reynolds’ transport theorem. Mass,  linear momentum and energy conservation.
5. Simplifications to energy equation. Bernoulli’s equation. Dynamic pressure and stagnation pressure. Velocity and flow rate measurements.
6. Dimensional analysis and similarity. The Buckingham’s "Pi" theorem. Non dimensional groups. Theory of similarity.
7. Viscous flow in ducts. Inlet zone. Laminar and turbulent regimes, velocity profiles. Head loss in a pipe. Darcy’s coefficient, Colebrooke-White equation and Moody’s diagram. Haaland equation. Minor losses. Pumps and fans, characteristic curves and operating point. Cavitation and suction capability. Association of pumps and fans.
8. External flows. Drag (viscous and pressure components). Flow over a flat plate (boundary layer). Lift force.

Mandatory literature

Frank M. White; Fluid mechanics. ISBN: 0-07-116848-6

Complementary Bibliography

Bruce R. Munson, Donald F. Young, Theodore H. Okiishi; Fundamentals of fluid mechanics. ISBN: 0-471-17024-0
Merle C. Potter, David C. Wiggert; Mechanics of fluids. ISBN: 0-13-571142-8
Yunus A. Çengel, John M. Cimbala ; trad. Katia Aparecida Roque, Mario Moro Fecchio; Mecânica dos fluidos. ISBN: 978-85-86804-58-8
Luis Adriano Oliveira, António Gameiro Lopes; Mecânica dos fluidos. ISBN: 972-8480-13-X

Teaching methods and learning activities

Lectures: Presentation of theoretical concepts and discussion.
Theoretical-practical sessions: Examples, exercises and discussion of student’s questions.

Evaluation Type

Distributed evaluation with final exam

Assessment Components

Designation	Weight (%)
Exame	75,00
Teste	25,00
Total:	100,00

Amount of time allocated to each course unit

Designation	Time (hours)
Frequência das aulas	52,00
Total:	52,00

Eligibility for exams

Presence in, at least, 70% of the lectures and 70% of theoretical-practical sessions.

Calculation formula of final grade

Two theoretical tests in Moodle platform, one in the middle and one at the end of the semester. Tests without consultation, 25 minutes in duration.
Written/practical examination in the examinations period. Limited consultation, 120 minutes in duration.
The final grade will be obtained weighting by 25% the average grade in the theoretical tests and by 75% the result of the practical examination.
The improvement/final examination includes, as a whole, both theoretical and practical components. The same weights will be used in the calculation of the final grade: 25% for the theoretical test (one test focusing all issues), 75% for the practical component.

Examinations or Special Assignments

Not planned.

Internship work/project

Not applicable.

Special assessment (TE, DA, ...)

FEUP rules to be considered.

Classification improvement

Final/improvement examination, with similar rules.