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Aerofoil theory; Flat plate lift and drag; Aerofoil lift and drag; Predicting aerofoil data with Xfoil; Boundary layer theory; Aircraft performance; Stability and control in flight; Wind tunnel testing; Glider design, build and test; Propeller design; BEMT method; High speed (compressibility) effects; Wheeled ground vehicles: load transfer, tyre design, traction and rolling resistance, aerodynamics, suspension and steering
This course teaches the fundamental understanding and some of the design skills required for aerodynamic design in the aviation and automotive industries, with relevance also to the wind and hydroelectric power industries. The course strengthens skills required for almost any industrial application with moving fluids.Theoretical knowledge in the topics above will be taught by lectures and self-paced study with online materials. Practical exercises include modelling aerofoils with Xfoil, measuring aerofoil properties in a wind tunnel, designing and building a hand-launched glider from supplied materials, and modelling wheeled vehicle dynamics in MATLAB.Aerofoil properties:• Flat plate lift and drag• Aerofoil lift, drag and pitching moments• Pressure and shear stress distributions on aerofoils, and their integration to lift and drag• Polar data • Tip vortices and other finite wing effectsAircraft performance:• Equations of motion for flight vehicles• Glide ratio• Thrust required• Power required• Range and endurance• Takeoff and landing• High lift devices• Turning performanceStability and control of flying vehicles:• Control surfaces for fixed-wing craft• Actuators• Longitudinal stability (trim) treated quantitatively• Lateral, directional and roll stability treated qualitativelyPotential flow analysis methods:• Definition of flow potential and streamline functions• Representing simple 2D inviscid flows with potential and streamline methods• Representing superpositions of simple 2D inviscid flowsPropeller systems:• Propeller design considerations• Blade element momentum theory (BEMT) design methodHigh speed effects:• Transonic control• Supersonic control and drag• Supersonic propulsionCompressible flow:• Speed of sound and Mach number• Thermo-fluid dynamics of compressible flow• Adiabatic nozzle flow and applications in flow rate control and propulsion• Normal shocksWheeled ground vehicle dynamics:• Load transfer in cornering• Tyre design, traction and rolling resistance• Ground vehicle aerodynamics• Suspension types• Steering geometry
Learning Outcomes and National Qualifications Framework (NQF)Knowledge outcomes:Solid grasp of the fluid dynamics underlying aerodynamics and methods for computing the pressure distributions and total lift, drag and momentsKnowing where to find and how to manipulate empirical data to estimate drag and lift on simple bodiesKnowing how to represent simple 2D inviscid flows with simple potential and streamline methodsKnowing what determines the performance of systems with compressible flow at Mach numbers greater than 0.3Knowledge of the relationship between flying vehicle configuration, control surface layout and stabilityFundamental knowledge of the forces governing ground vehicle performance and comfort and their relationship to steering, suspension and tyres.Skills outcomes:Ability to choose an appropriate airfoil for a specific applicationAbility to design a body enclosing a given envelope for low aerodynamic or hydrodynamic dragAbility to estimate thrust, power, range, endurance and speed in flightAbility to design and construct simple lightweight glidersAbility to quickly represent common flow patterns with streamline and potential methodsAbility to choose appropriate tyres and tyre pressures for a ground vehicle and calculate power requirements for given speeds.Personal attributes developed:Communicating complex concepts to peersDesigning and constructing optimal systems with limited resources
ENME304 or ENME314
Mark Jermy
Anderson, J D; Fundamentals of Aerodynamics ; McCraw-Hill, 2010 (Choose one of the recommended textbooks).
Anderson, J D; Introduction to Flight ; McGraw-Hill, 2005 (Choose one of the recommended textbooks).
MIT; The Simple Science of Flight ; 2009 (General Interest).
Domestic fee $1,080.00
International fee $5,250.00
* All fees are inclusive of NZ GST or any equivalent overseas tax, and do not include any programme level discount or additional course-related expenses.
For further information see Mechanical Engineering .