# Fluid Mechanics

**Chemical and Biochemical Engineering**

4 ECTS; 1º Ano, 2º Semestre, 15,0 T + 30,0 TP

**Lecturer**

- Paula Alexandra Geraldes Portugal

**Prerequisites**

Not applicable.

**Objectives**

Develop skills to carry out calculations with Newton's law, basic law of hydrostatics, law of continuity of flows, equation of Bernoulli, continuous loss of energy, and power of pumps and turbines.

**Program**

1 - Fluid Properties

1.1 - external forces

1.2 - volumic weight and density

1.3 - Compressibility

1.4 - Viscosity

1.5 - Surface tension and capillarity

1.6 - Vapour pressure

1.7 - Pressure

2 - Hydrostatics

2.1 - Hydrostatics law

2.2 - Relative and absolute pressures

2.3 - Pressure Gauges

3 - Hidrocinemática

3.1 - trajectory and current line

3.2 - Types of flows

3.3 - Flow rate and average velocity

3.4 - Laminar and turbulent flow

4 - Hydrodynamics - Principles

4.1 - Bernoulli's Theorem

4.2 - piezometric and power lines. Piezómetro and Pitot tube

4.3 - Hydraulic Power. Pumps and turbines

5 - Hydrodynamics - Laws of Resistance

5.1 - tangential stress in the solid border

5.2 - Reynolds's Experiment

5.3 - Darcy's equation for friction factor

5.4 - Colebrook-white formulas and equilibrium diagram

**Evaluation Methodology**

Continous assessment: Three written min-tests (classification is the arithmetic mean, minimum grade to be approved = 9,5 pts)

Exam assessment: written exam with minimum classification of 9,5 pts.

**Bibliography**

- White, F. (2002). *Mecânica dos Fluidos*. Rio de Janeiro: McGraw-Hill

- Darby, R. (2001). *Chemical Engineering Fluid Mechanics*. New-York: Marcel Dekker, Inc.

- Fox, R. e Pritchard, P. e McDonald, A. (2010). *Introduction to Fluid Mechanics*. Asia: John Wiley and Sons

- Quintela, A. (1981). *Hidráulica*. Lisboa: Fundação Calouste Gulbenkian

**Method of interaction**

Theoretical sessions in which the concepts and laws of fluid mechanics are provided and theoretical-practical sessions where exercises are proposed and solved by the students under the lecturer?s supervision.

**Software used in class**

Not applicable.