AS3401 Aerodynamics Syllabus:
AS3401 Aerodynamics Syllabus – Anna University Regulation 2021
OBJECTIVES:
• To recall the governing equations of fluid mechanics.
• To understand the behaviour of airflow over bodies with particular emphasis on aerofoil sections in the incompressible and compressible flow regime.
• To introduce the Navier Stroke equations and its application
• To make the student understand the concept of vorticity, irrotationality, theory of airfoil and wing sections.
• To illustrate the conformal transformation and to extend the wing theory.
• To compare the interactions of shocks and expansion waves in fluid flow.
UNIT I INTRODUCTION TO LOW-SPEED FLOW
Incompressible Bernoulli’s equation – circulation and vorticity – Green’s lemma and Stoke’s theorem – barotropic flow – Kelvin’s theorem.
UNIT II TWO DIMENSIONAL FLOWS
Basic flows – Source, Sink, Free and Forced Vortex, Uniform, and Parallel Flow and their combinations – Pressure and velocity distributions on bodies with and without circulation in ideal and real fluid flows.
UNIT III CONFORMAL TRANSFORMATION
Kutta Joukowski’s theorem – Joukowski transformation and its application to fluid flow problems – Schwartz-Christoffer transformation – Kutta condition – Blasius theorem.
UNIT IV AIRFOIL AND WING THEORY
Joukowski, Karman – Trefftz, Profiles – Thin aerofoil theory and its applications – Vortex line – Horse shoe vortex – Biot and Savart law – Lifting line theory and its limitations.
UNIT V SHOCKS AND EXPANSION WAVES
Mach number and its importance in compressible flows – Equation of motion for compressible flow in 1D – Normal shock – Rankine Hugoniot relations – oblique shock relations – strong, weak and detached shocks – isentropic flows – Prandtl Meyer expansion and expansion fans
TOTAL = 45 PERIODS
OUTCOMES:
On successful completion of this course, the student will be able to
• Calculate the airspeed, static and dynamic pressure of the flow at any point using Continuity and Bernoulli equations.
• Illustrate the effect of airflow on an aircraft and its components using the laws of physics and fundamental mathematical methods
• Solve lift generation problems using aerofoil theories
• Apply the conformal transformation and its application to fluid flow problems
• Examine the fluid flow characteristics over aerofoils, wings, and airplanes.
• Examine the shock phenomenon and fluid waves.
TEXT BOOKS:
1. Anderson J. D., “Fundamentals of Aerodynamics”, 5th Ed., McGraw-Hill, 2010.
2. Anderson J. D., “Modern Compressible Flow with Historical Perspective”, TMH, 3rd Ed., 2012.
3. Clancy L. J., “Aerodynamics”, Reprint Ed., Himalayan Books, 2006.
4. E Rathakrishnan, “Theoretical Aerodynamics”, John Wiley, NJ, 2013
REFERENCES:
1. Bertin, J. J. and Cummings, R. M., “Aerodynamics for Engineers”, 6th Ed., Prentice Hall, 2013.
2. Drela, M., “Flight Vehicle Aerodynamics”, MIT Press, 2014.
3. Houghton, E. L., Carpenter, P. W., Collicott, S. H., and Valentine, D. T., “Aerodynamics for Engineering Students”, 6th Ed., Butterworth-Heinemann, 2012.
4. Kuethe, A. M. and Chow, C. Y., “Foundations of Aerodynamics”, 5th Ed., John Wiley, 1998.
5. Milne Thomson, L.H., “Theoretical aerodynamics”, Dover Publications, 2011.