AEE342 Aerodynamics II

Course Description:
Compressible flow, normal and oblique shock waves, Prandtl-Mayer expansion wave. Subsonic Compressible Flow over Airfoils; Linear Theory, Linearized Supersonic Flow. 2D Boundary layers, concept and governing equations, similar flows and similarity transfo rmation, Blassius problem. Integral methods of solution. Laminar and turbulent flows, stability and transition. Turbulence and transition. Turbulent boundary layers, Law of the wall and various turbulence models, Prandtl mixing length concept. Combined B/ L along a flat plate, separation and stall, B/L on airfoils.

Prerequisite(s):
AE341 Aerodynamics I

Text Book(s) and/or Other Required Material :
"Fundamentals of Aerodynamics", second Edition, J. D. Anderson Jr. Mc Graw Hill, ISBN 0-07-001679-8

The following books are the excellent sources of reference.
"Aerodynamics, Aeronauticsand Flight Mechanics", B. W. McCormick, John Wiley and Sons, ISBN 0-471-03032-5

Course Objectives:
This is a course designed to complement the Aerodynamics I course. The objective of the course is to cover compressible and viscous flows. The student is introduced with the concept of normal and oblique shock waves and expansion waves. Calculation of pre ssure distribution and the resulting lift and drag components over supersonic 2D bodies are given. Subsonic compressible flow over airfoils and simplifid methods of analysis using the linearized supersonic theory are also presented. The second part of the course is devoted to viscous flow and boundary layers. The concepts of laminar, turbulent boundary layers, law of the wall and various turbulence models are presented.

Topics Covered:
1.Compressible Flow Aerodynamics
Introduction and Review of Thermodynamics - 1 Week
Steady One Dimensional Compressible Flow - 1.5 Weeks
Normal Shock Waves - 1 Week
Obliques Shock waves - 1 Week
Expansion waves - 1 Week
Subsonic Compressible Flow Over Airfoils, Linear Theory - 1.5 Weeks
Linearized Supersonic Theory - 1 Week

2.Two dimensional Boundary Layers
Introduction to Viscous Flow, B/L Equations, Reynolds Number - 1.25 Weeks
Integral B/L Equations and Solutions - 1.5 Weeks
Differential B/L Equations - 1.25 Weeks
Exact and Numerical Solutions for Differential B/L Equations - 0.75 Weeks
Transition to Turbulence, Turbulent Flows and Turbulence Models - 1.25 Weeks
Calculation for Turbulent Flows - 1.25 Weeks
Calculation of Airfoil Lift and Drag by Viscous/Inviscid Coupling - 0.75 Weeks

Class/Laboratory Schedule:
The course has 3 lecture and 2 laboratory hours. The duration of each lecture hour is 50 minutes.

Homework, Quizzes and Projects:
Regular homework will be assigned.
Projects will be given.
No quizzes.

Computer Usage: Programming using Fortran or any available language for compressible and B/L projects.
Laboratory Work: Experiments in supersonic wind tunnel (4-5 experiments). Experiments in low speed wind tunnel, B/L measurements laminar, turbulent, rough surface.

Contribution of Course to Meeting the Professional Component:
Mathematics and Basic Sciences: None
Engineering Design: None
Engineering Sciences: 2 credits
Humanities and Social Sciences: None

Relationship of Course to Program Objectives:
This course satisfies the departmental objectives 1,2 and 3.

Prepared By:
Prof. Dr. Nafiz Alemdaroğlu
11-26-1999