Fluid Mechanics

Code:

EIG0024

Acronym:

MF

Keywords
Classification	Keyword
OFICIAL	Power

Instance: 2020/2021 - 2S

Active?	Yes
Responsible unit:	Fluids and Energy Division
Course/CS Responsible:	Master in Engineering and Industrial Management

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
MIEGI	138	Syllabus since 2006/2007	2	-	6	56	162

Teaching language

Portuguese

Objectives

To analyze, understand and characterize, based on the fundamental laws of mechanics and specific methodologies, the behavior of fluids, at rest and in motion, in order to solve problems of fluid mechanics in engineering.

 

Learning outcomes and competences

It is expected that at the end of the semester students:

1. Be able to characterize fluids by their properties and solve simple problems with Newton's law of viscosity;
2. Be able to apply the principles of fluid statics to manometry and to the characterization of pressure forces on immersed flat surfaces;
3. Be familiar with the fundamental aspects of kinematics and dynamics in the context of fluid mechanics;
4. Understand the advantages of using dimensional analysis and the principles of similarity in solving fluid mechanics problems;
5. Know how to apply the mass and energy conservation equations to viscous flows in ducts, calculate load losses, energy requirements, estimate of the available flow and dimension simple ducts;
6. Understand and know how to use the characteristic curves of the pumps and fans, in order to select and analyze the operation of these equipment;
7. Be able to characterize the forces resulting from the action of flows on bodies immersed in them.

Working method

Presencial

Program

Introduction. Scope of Fluid Mechanics. Fluid concept and more relevant thermodynamic properties. Hypothesis of continuous medium. Viscosity and Newton's Law of viscosity. Newtonian and non-Newtonian fluids. Vapor tension and cavitation.
Statics of fluids. Pressure in fluid at rest. Invariability of pressure with direction. Pascal principle. Hydrostatics fundamental equation. Manometry. Forces on immersed flat surfaces. Buoyancy.
Notions of kinematics. Velocity ​​field properties. Local and convective acceleration. Lagrangean and Eulerian perspectives. Systems and control volumes. Volume and mass flux and average velocity, law of mass conservation (continuity).
Integral formulation. Reynolds transport theorem. Conservation of mass. Conservation of energy (1st law of thermodynamics). Simplifications to the energy conservation equation. Ideal flow. Bernoulli equation. Interpretations of the Bernoulli equation. Dynamic pressure and stagnation pressure. Velocity and volume flow rate measurements.
Dimensional analysis and similarity. Reference variables and dimensions of a problem. More common dimensionless groups in fluid mechanics and their meaning. Rules of similarity and flow modeling.
Viscous flow in ducts. Laminar and turbulent regimes. Development zone. In line heath losses. Darcy's coefficient and Darcy-Weisback's equation. Parabolic profile and solution for the laminar case. Logarithmic profile, Colebrooke equation and Moody diagram. Minor losses in pipes. Inverse problems: determination of flow rate and dimensioning of ducts. Multiple pipe systems.
Centrifugal pumps and fans. Characteristic curves and operating point. Cavitation and suction capacity of pumps. Association of pumps in series and in parallel.
External flows. Basic concepts of boundary layer. Action of flows on non-fuselated bodies. Drag and lift forces and coefficients.

Mandatory literature

Frank M. White; Fluid mechanics. ISBN: 0-07-116848-6
Bruce R. Munson, Donald F. Young, Theodore H. Okiishi; Fundamentals of fluid mechanics. ISBN: 0-471-17024-0

Complementary Bibliography

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
Merle C. Potter, David C. Wiggert; Mechanics of fluids. ISBN: 0-13-571142-8

Teaching methods and learning activities

Lectures: Presentation of theoretical concepts on video, made available in advance to students; during class time, synchronous session to explain complementary aspects, discuss and clarify doubts.
Theoretical-practical classes: Synchronous session to solve typical problems and clarify students' doubts.

Evaluation Type

Evaluation with final exam

Assessment Components

Designation	Weight (%)
Exame	100,00
Total:	100,00

Amount of time allocated to each course unit

Designation	Time (hours)
Estudo autónomo	106,00
Frequência das aulas	56,00
Total:	162,00

Eligibility for exams

N.a., distance learning.

Calculation formula of final grade

Written exam, with theoretical questions and resolution of practical exercises.
Limited consultation (formulary), 90 minutes duration.
The theoretical component has a weight of 25% in the final grade. The practical component, 75%. A minimum of 7/20 values is required for each component.

The evaluation in the time of appeal / improvement takes place along the same lines as the exam.

Final grade can be adjusted by more or less 1/20, depending on the interest shown by the themes and participation in the classes. 

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Examinations or Special Assignments

Not planned.

Internship work/project

Not applicable.

Special assessment (TE, DA, ...)

According to FEUP regulations and with rules similar to the ones of improvement/final examination.

Classification improvement

According to FEUP regulations, simultaneously and with rules similar to the ones of improvement/final examination.

Observations

Due to changes in the functioning of teaching activities resulting from the crisis caused by COVID19, it was necessary, already during the semester, to make changes to the assessment methodology and calculation formula of the final classification.

The assessment will consist of a single written test to be carried out at the exams period, presential, with consultation limited to a formulary, with 90 minutes duration, covering the entire program and encompassing theoretical questions and exercises.
The UC classification will be the classification obtained in this test.

At the time of appeal / improvement exams there will be a test of the same type as that performed during the exams period.

The final classification in UC will be the best among those obtained in  the exams period and in the appeal exam.