• Semester 4, position 4

The aim of this course is to introduce students to basic concepts of applied aerodynamics in the domain of subsonic and lower transonic speeds. The emphasis is on the aerodynamics of aircraft, where the aerodynamic characteristics of airfoils, lifting surfaces, and of complete airplane configurations are analyzed. Students will also be introduced to the fundamentals of propeller aerodynamics, as well as of the aircraft lifting surface controls.

After passing the course, the student is expected to understand the fundamental laws of aerodynamics and to possess the knowledge of how to apply them for the solution of practical problems. It is expected that the student will be able to perform basic aerodynamic analyses of airfoils and lifting surfaces, as well as to determine the polar curve for the entire airplane in cruising configuration, at subsonic and lower transonic speeds.

The course consists of theoretical and practical part. Theoretical part covers the following topics: - introduction: the role and the case study of aerodynamics, aerodynamics in aeronautical and non-aeronautical applications, aerodynamic force and aerodynamic moment, international standard atmosphere; - airfoils (basic geometric characteristics, notation and families, as well as the parameters which define their aerodynamic characteristics); - lifting surfaces of finite aspect ratio (geometric and aerodynamic characteristics); - compressibility effects and their influence at higher subsonic and transonic speeds; - determination of polar curves for the complete aircraft in cruising configuration at subsonic and lower transonic speeds; - design features and aerodynamic characteristics of propellers; - control surfaces (ailerons, flaps, slots, air brakes); - aircraft aerodynamic design schemes.

Practical part of the course demonstrates numerical examples in the areas covered by lectures. Practical work of students is accomplished through a virtual classroom available 24 hours (internet - software MOODLE). In the workshop students have access to the professor's lectures in form of handouts, assignments and tests for practice. Practical training includes two homeworks (one individual and one collective, within the groups to which students are divided). In the first homework student performs calculations of the aerodynamic characteristics of the airplane (polar curve for cruising flight configuration), and the second is the seminar work which is publically presented. Practical training also includes the excursion - visit to the Aviation Museum - Surčin.

None.

The Course includes a virtual classroom, accessible by Internet. The MOODLE software is used. Students are enrolled electronically into the classroom and have access to the professor’s handouts, quizzes and additional materials advised by the professor.

Total assigned hours: 75

New material: 20
Elaboration and examples (recapitulation): 10

Auditory exercises: 10
Laboratory exercises: 0
Calculation tasks: 5
Seminar paper: 5
Project: 5
Consultations: 0
Discussion/workshop: 5
Research study work: 0

Review and grading of calculation tasks: 0
Review and grading of lab reports: 0
Review and grading of seminar papers: 3
Review and grading of the project: 2
Test: 0
Test: 5
Final exam: 5

Activity during lectures: 10
Test/test: 20
Laboratory practice: 0
Calculation tasks: 0
Seminar paper: 20
Project: 20
Final exam: 30
Requirement for taking the exam (required number of points): 25

I. Kostić, O. Kostić: Aerodynamic Constructions, Handouts, University of Belgrade, Faculty of Mechanical Engineering, Belgrade 2023.; З. Стефановић: Аеропрофили, Машински факултет, Београд, 2005.