Aerodynamics

Objectives

The main objective of this curricular unit  is to present and understand the fundamentals of Aerodynamics in order to analyze  not only subjects in the scope of Aerospace or Aeronautical Engineering, but also related to aerodynamics applied to buildings.

It is an application of the knowledge already acquired in disciplines such as Fluid Dynamics I and II, where the understanding of some points addressed throughout the course of the curricular unit will require the deepening of some Fluid Dynamics sujects.

Introduction to the aerodynamic wind tunnel experimental method

General characterization

Code

12046

Credits

6.0

Responsible teacher

Diana Filipa da Conceição Vieira, José Fernando de Almeida Dias

Hours

Weekly - 4

Total - 70

Teaching language

Português

Prerequisites

The programme assumes that the student masters the matters studied in «Dinâmica dos Fluidos I and II» (code 3658).

Bibliography

•Oliveira, L. A. e Lopes, A. G., “Mecânica dos Fluidos”, 5º Edição, Lidel. (Capitulo 8)
 
•White, F. M., “Fluid Mechanics”, McGraw-Hill.
 
•Brederode, V. de, “ Fundamentos de Aerodinâmica Incompressivel, IDMEC, IST, Lisboa.
 
•Abramovich, G. N, “ The theory of turbulent jets”, Cambridge University Press.
 
•Rajaratnam, N., “ Turbulent jets”, Elsevier.

Teaching method

This year, exceptionally, practical and theoretical classes will be online via zoom. Only the class dedicated to experimental work will be in person.

In theoretical classes the exposition of the discipline subjects is made, the participation of the students is stimulated. In the practical classes problems and simulated practical cases in the domain of application of the concepts are presented in order that the students actively collaborate in their resolution.

In classes and outside them a tutorial accompaniment of the students is made for the accomplishment of the works of disciplines. The works of discipline have as starting point the information research, appealing to conventional or on line libraries, or wind tunnel laboratory measurements, and culminate with the submission of a final report and a public presentation.

Evaluation method

The evaluation of the curricular unit contains a theoretical test, a theoretical work and a practical work. To obtain approval students must attend at least 2/3 of the classes (theoretical and practical). And deliver, present and discuss the work respecting the dates scheduled for such.

The weights assigned to each assessment will be:

-Chapter I project  – 25%
 
- Chapter III project – 25% 
 
-Experimental work –(Atmospheric boundary layer) 25%
 
-Theorical work ( Jets Flow) – 25%

Subject matter

I.Potential Flow

  - Superposition of elementary plane potential flows

  -  Kutta – Joukowski theorema

  -  Magnus effect

  - Aerofoil Theory

II. Compressible Floww

- Compressible Duct Flow with Friction

-Frictionless Duct Flow with Heat Transfer

III.Jets Flow:

  - Turbulent jets types

  - confined and unconfined jets

  - Jets with and without crossflow presence 

IV.Aerodynamic tunnel testing

  - Wind tunnels

  - Flow Visualization principles

  - Scalar, velocity, force and shear measurements

Programs

Programs where the course is taught: