Aerodynamics and Mechanics of Flight
- Garant předmětu:
- Department of Electric Drives and Traction
The course provides overview of key findings from aircraft aerodynamics and flight mechanics. In the first part, students are familiar with models and equations for the flow of an incompressible fluid. In the second part there are derived equations describing force and rotating effects of flow on the surface of the airfoils and wings. The important relations for effects of compressibility are derived in the next part. These findings are applied on flow around the airfoils and wings at high subsonic, supersonic and hypersonic speeds in last part. In the subject there are discussed basic modes of flight mechanics.
- Syllabus of lectures:
1. Properties of gases, flow models, basic equations of fluid mechanics and thermodynamics.
2. Navier-Stokes equation. Potential flow, lift. Properties of vortex and vortex fields.
3. Dimensional analysis and similarity, empirical relation for lift. Laminar and turbulent flow. Boundary layer.
4. Airfoil, aerodynamic force and moment. Theory of thin profile, integral characteristics of the airfoil.
5. Influence of boundary layer on the integral characteristics of airfoils. Methods of singularities, panel methods.
6. Geometry of wing. Theory of wing, induced parameters. Monoplane equation and its solution. Influence of ground plan shape and twist of wing.
7. Devices for increasing of lift. The concept of the longitudinal and directional stability.
8. Effects of compressibility. Critical Mach number, transonic divergence, swept wing.
9. Propulsive system. Theory of propeller propulsion. The main rotor of the helicopter. Turbine jet engine.
10. Flight mechanics - gliding, horizontal, rising flight, steady horizontal turn, takeoff, landing. Standard atmosphere.
11. Supersonic flow, critical state. Shock and expansion wave. Supersonic flows around oblique plate.
12. Supersonic flow around the airfoil and wing. Integral characteristic, wave drag. Transonic flow.
13. Hypersonic flow, flight through the atmosphere. Rocket propulsion, single- and multi-stage rocket. Laval nozzle.
14. Re-entry capsule, ballistic descent, aerodynamic heating, stability of return module.
- Syllabus of tutorials:
1. Flow in duct, calculation of losses. Individual student project.
2. Modelling of the flow, program Matlab/Simulink.
3. Numeric solution of flow fields, CFD program Fluent.
4. Integral characteristics of the profile.
5. Design of profile of desired properties.
6. Airfoil and panel methods.
7. Integral characteristics of of the wing.
8. Design of wing. Effect of flaps and wing torsion.
9. Wing and panel methods.
10. Design of tail surfaces, stability and maneuverability.
11. Design of propeller, method of elemental profile.
12. Flight Mechanics.
13. Izoentopic flow, critical conditions, Laval nozzle.
14. Ballistic descent.
- Study Objective:
- Study materials:
Anderson, J. D. Jr.: Fundamentals of Aerodynamics. McGraw-Hill, 2007. ISBN: 13978-0-07-295046-5
Hughton, E.,L., Carpenter P., W.: Aerodynamics for Engineering Students. Butterworth-Heinemann 2003. ISBN: 978-0-7506-5111-0
Phillips, W. F.: Mechanics of Flight. John Wiley & Sons, 2004. ISBN: 0-471-33458-8
- Further information:
- No time-table has been prepared for this course
- The course is a part of the following study plans: