Fluid Mechanics

Scholar Year: 2015/2016 - 1S

Occurrence: 2015/2016 - 1S

Courses

Teaching - Hours Theorethical and Practical classes: 4 Laboratories: 1 Type Teacher Classes Hours Theorethical and Practical classes Totals 1 4,00 José Lopes   4,00 Laboratories Totals 1 1,00 José Lopes   1,00

Responsibilities Teacher Responsability Nuno Humberto Costa Pereira Head

Teaching weeks:

15

Teaching language

Portuguese

Aims

The main objective of this UC is to develop the student’s interest in the study of fluid mechanics, in order to know the main subjects of statics and Dynamics of fluids to solve the most common problems that arise in engineering.
At the end of this UC the students should be able to:
- Determine the force and its point of application on a submerged flat surface;
- Determine the pressure indicated by any liquid column manometer;
- Draw the free body diagram of floating or submerged objects and determine the forces involved;
- Identify and characterize the flow regime; calculate the losses of the flows inside pipelines; determine the
system curve;
- Characterize the type of turbomachinery depending on the inside flow; interpret their performance curves; determine operating points, selection of pumps and blowers; evaluate the possibility to occur cavitation in pumps; Determine curves of combined pumps.

Program

- Fluid concept;
- Viscosity of the fluid;
- Distribution of pressure in a fluid;
- Flow of fluids, Bernoulli and energy equations;
- Flow regimes;
- Viscous flow in ducts;
- Application and selection of pumps and fans.

Teaching methods

Theoretical-practical (2x2h per week): theoretical exposure of subjects with student’s interaction (using a video projector for presentation of content, movies and exercises) and demonstration method (with practical problems solved by students).
Practical-laboratorial classes (1x1h per week): experimental method (laboratorial experiments to apply the theoretical subjects).

Assessment method

Attendance

Continuous assessment implies the presence in the practical classes. The classes are not mandatory, although it made ​​the check attendance for statistical purposes.
Laboratory classes are compulsory attendance.

Final Mark

* Continuous Assessment:
- Two tests (70%) - Minimum grade of 8.5 V; Arithmetic Minimum: 9.5 V
- Problems proposed (5%) - Mandatory Delivery (no minimum score)
- Laboratories (25%) - Mandatory (minimum grade of each laboratory: 9.5 V)

* Evaluation by final exam:
- Exam (70%) - Minimum score: 9.5 V
- Laboratories (30%) - Mandatory (minimum grade of each laboratory: 9.5 V)

> Students with final score equal or greater than 16V should undergo oral, otherwise the grade will be 15V.

<*> In tests and examinations may be used only non-programmable scientific calculator and have restricted consultation - Form supplied

Exams and special assignments

- Resolution of 2 sets of problems series are required for continuous assessment.

- Laboratory work to be carried out:
1) Determination of the viscosity of a fluid through the terminal velocity of fall;
2) Hydraulic apparatus: Study of Bernoulli's theorem;
3) Hydraulic apparatus: Study of the impact of jets;
4) Hydraulic apparatus: Load losses in inputs/outputs and contraction/expansion;
5) Load losses test rig: Load losses in pipes and accidents;
6) Centrifugal pump test rig: Performance curves of centrifugal pumps.

Special Evaluation

- Exam (70%) - Minimum score: 9,5 V
- Laboratories (30%) - Minimum grade for each lab: 9,5V

> Students with final score equal or greater than 16V should undergo oral, otherwise the grade will be 15V.

<*> In tests and examinations may be used only non-programmable scientific calculator and have restricted consultation - Form supplied

Grade improvement

The improvement of the final grade in the next year will only by examination with weight of 100%.

> Students with final score equal or greater than 16V should undergo oral, otherwise the grade will be 15V.

Primary Bibliography

Secondary Bibliography

Observations

The laboratories grades obtained in previous years are valid if the student in that school year had a score equal to or greater than 5V ​​in the component of tests or exams. You should talk to Professor Laboratories.