• Aviation, Semester 1, position 1

The course objective is that students develop an understanding of practical applications of subsonic aerodynamics and to provide an introduction to compressible flows (lower transonic domain). The course initially covers concepts of airfoil theory, and the analysis of symmetric and cambered airfoils using analytical and numerical tools. The course also covers wing theory, lifting-line theory, elliptic wings, twisted wings, and their practical applications in the design of wings to meet the assigned aerodynamic requirements. Finally, students are involved in practical calculations of aerodynamic characteristics (lift, drag and the derived parameters) of the entire aircraft in configurations for take-off, landing and cruising flight in subsonic and lower transonic speed domains.

After accomplishing the course, students should be capable of understanding and explaining various aspects of the relations between the body shape (airfoil, lifting surface, air vehicle) and its aerodynamic characteristics. In addition, the students must be able to recognize the opportunities for the application of the acquired knowledge for the solution of different, both aeronautical, and non-aeronautical practical problems.

In the theoretical part of course the following topics are analyzed. Two-dimensional problems: airfoil characteristics: the method of singularities, thin airfoil theory, method of droplets, panel methods, empirical methods and the determination of aerodynamic loads. Three-dimensional problems: vortex wing models, the theory of lifting line, analysis of elliptic wing, twisted non-elliptic wings, influence of geometric parameters on aerodynamic characteristics, loading of wings of arbitrary shape. Aerodynamic characteristics of complete aircraft. Wing airfoils selection, lifting characteristics and drag of wing and complete aircraft in take-off and landing configurations, and in cruising flight at subsonic and lower transonic speeds. Role of the CFD in the analysis and determination of aerodynamic characteristics.

In the practical part of the course professor demonstrates the numerical examples in various areas. Practical work of students is accomplished through a virtual laboratory, available 24 hours (program MOODLE). In the workshop students have access to the professor's lectures (handouts), assignments for practice and tests. Practical training includes the preparation of project (calculations of aerodynamic characteristics of a selected aircraft). Project is performed by each student individually.

None. Students who did not take any of aerodynamics courses on bachelor studies are referred to the additional handouts by professor.

This course has a virtual classroom on the Internet. At the first lecture students are enrolled and trained for work in Moodle software package. In the workshop, students have access to lectures and exercises, guidelines for project design, internet resources, etc.

Total assigned hours: 75

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

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

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

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

I. Kostić, O. Kostić: Applied Aerodynamics, Handouts, University of Belgrade, Faculty of Mechanical Engineering, Belgrade 2022.; H. Ashley: Aerodynamics of Wings and Bodies, McGraw Hill, 1995.; Т. Драговић, Аеродинамика пројектовања летелица, Машински факултет, Београд 1997.