Aerodynamics

		Study programme 2019-2020	Français
		Aerodynamics
		Learning Activity

Code	Lecturer(s)	Associate Lecturer(s)	Subsitute Lecturer(s) et other(s)	Establishment
I-FLMA-013	COUSSEMENT Grégory			Université de Mons

Language of instruction	Language of assessment	HT(*)	HTPE(*)	HTPS(*)	HR(*)	HD(*)	Term
Français	Français	24	12	0	0	0	Q1

Organisational online arrangements for the end of Q3 2019-2020 assessments (Covid-19)
Written exam (multiple choice, open questions)
Description of the modifications to the Q3 2019-2020 online assessment procedures (Covid-19)
The exam will take place over half a day during the session. The exam is carried out using an online assessment platform according to a schedule defined by the faculty. In order to assess the degree of assimilation and mastery of the subject (and not a restitution of relationships), the examination consists of two questions. It will be done in open class (syllabus, notes, slides, ...). 1st part: Open questionnaire of theory on the subsonic aerodynamic part of the course. This open question of theory contains sub-points guiding the student in terms of expectations. These sub-points concern different fundamental chapters of subsonic aerodynamics. In your response, therefore, stay focused on these expectations. This open question is essentially based on the description, reasoning, justification of the relationships and physical behaviors presented. The answer must highlight the understanding of the subject and the ability on the part of the student to provide an answer where the emphasis is on the assimilation of concepts, reasoning, logic, physical interpretation, common sense and justification of the relationships and physical behaviors presented. Serious preparation is therefore necessary, and the notes are there to draw certain relationships and concepts to support certain descriptions, certain principles, certain reasoning, certain analyzes and certain criticisms and / or guide the reflections and / or opinions given in the response. They are not intended to simply restore the material as it is. 2nd part: Open questionnaire of application in the form of an exercise on the compressible aerodynamic part of the course. The exercise makes direct use of the concepts of the "compressible aerodynamics" part of the course and is presented in a form similar to those presented in the course and resolved during the exercise and practical work sessions. The evaluation is essentially based on the resolution methodology and the justifications by placing in the background the numerical values of a numerical calculation. The description of physical phenomena, the justification of the evolutions of the aerodynamic quantities, the reasoning, the chain of relationships and the justification of the assumptions used therefore constitute an essential part and must, as such, include all the diagrams, flowcharts, equations, the graphics and / or drawings necessary for understanding the physics and the resolution method. Serious preparation is therefore necessary, and the notes are there to draw certain relationships, support certain reasoning or guide a reflection on the resolution methodology. They are not intended to simply restore the material as it is. The list of chapters and subject to be known for the exam is made available to students on the faculty's intranet site. Unless explicitly stated in this list, all of the aerodynamic elements that have been seen during the course are included in the examination material, the grid of which is found in the copy of the transparencies made available to students. The overall weighting is as follows: 50% for the first part of theory in incompressible aerodynamics. 50% for the 2nd part of exercise in compressible aerodynamics.

Content of Learning Activity

Reminder of the notions of lift, drag, Reynolds number and Mach number.
Incompressible Aerodynamics - Inviscid incompressible flows and subsonic aerodynamics: General laws on vortex conservation; Irrotational flows, potential flows and complex potential functions for 2D flow; Superposition principle; Blasius' laws, lifting profiles; Conformal mapping and Joukowski transformation; Kutta-Joukowsky theorem, resulting force and moment; Catalogue of the lift profiles: effects of camber, thickness and impacts on the behavior of the boundary layer; Panels method. 3D effects of finite span wings: notion of induced drag.
Compressible aerodynamics - Compressible fluids, 1st ans 2nd laws of thermodynamics, Mach number, supersonic speed and rule of forbidden signals: adiabatic and isentropic flows in streamtube of variable sections, Fanno flows, Rayleigh flows, normal and oblique shocks; Prandtl-Meyer flows and Mach waves.

Required Learning Resources/Tools

Not applicable

Recommended Learning Resources/Tools

Not applicable