JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

One Dimensional Flows: Compressibility, Review of Fundamentals: Concepts from Fluid Mechanics, Basic Thermodynamic Relations. Velocity of sound. Mach number, flow regimes. Governing equations of inviscid compressible flow. Continuity, Momentum and Energy equations in Integral and Differential form. Stagnation conditions.

UNIT - II

Flow through Nozzles: Flow Through a nozzle: Convergent Nozzles, CD Nozzles, Exit Pressure variation vs Stagnation pressure variation. Chocked flow conditions. Normal shock. Under and over expansion conditions. Flow through diffusers, wave reflections from a free boundary. Description of supersonic wind tunnels and rocket engine. Flow with Friction, Friction choking, Flow with heat addition, Thermal choking.

UNIT - III

Oblique Shocks And Expansion Waves: Oblique shock relations. Supersonic, Mach number relations strong and weak shock solutions / Shock flow over a wedge polar. Regular reflection from a solid boundary. Intersections of shock wave. Expansion waves. Prandtl – Meyer Expansion. Subsonic Compressible Flow Over Airfoil: Introduction, Velocity potential equation, Transonic small perturbation equation, Prandtl-Glauert compressibility corrections, Critical Mach number, Drag divergence Mach number, Area rule, Supercritical airfoil.

UNIT - IV

Supersonic Flow: Linearized supersonic flow, Linearized supersonic flow over airfoil and wings. Shock Expansion theory. Detached shock. Axi-symmetrical flows, flow past slender bodies of revolution, conical flows, Numerical integration procedure. HYPERSONIC FLOWS: Qualitative aspects of hypersonic flow. Newtonian theory. Flat plate at an angle of attack. Hypersonic shock wave relations. Lift and drag of wings at hypersonic speeds. Recent advances in hypersonic flows and testing techniques.

UNIT - V

Flow Measurements and Model Testing: Non dimensional parameters and II numbers Similarity of flows. Model testing in wind tunnels. Pressure, Velocity measurements, Force Measurements Wind Tunnel Balances: Force measurements, Wind tunnel balances. Scale effects and corrections, wall interferences, induced drag and other computations/corrections. Experimental Methods, Shock Tube, Supersonic Wind tunnel, Flow visualization, Supersonic Probes., Methods of characteristics. Design of nozzles, External flow around bodies, Experimental characteristics of airfoils in compressible flow.

R16 B.TECH AERONAUTICAL ENGG.

TEXT BOOKS:

• 1. Anderson J. D (2004), Modern Compressible Fluid Flow, 3rd Edition, McGraw-Hill International Edition, New York
• 2. Rathakrishnan E.E. (2010), Gas Dynamics, 3rd Edition, Prentice Hall of India, New Delhi.

REFERENCE BOOKS:

• 1. Anderson J .D. (2011), Fundamental of Aerodynamics, 5th edition, McGraw-Hill, New Delhi. Hodge B. K, Koenig K (1995), Compressible Fluid Dynamics with Computer Application, 1st edition, Prentice Hall, New York.
• 2. Clancy L. J. (2006), Aerodynamics, Sterling Publishers, New Delhi. R16 B.TECH AERONAUTICAL ENGG.