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Course Detail

Course Name Gas Dynamics and Jet Propulsion
Course Code 15MEC252
Program B. Tech. in Mechanical Engineering
Year Taught 2019


Unit 1

Basic concepts: Energy and momentum equations of compressible fluid flows – Stagnation states – Mach waves and Mach cone – Effect of Mach number on compressibility. Isentropic flows: Isentropic flow through variable area ducts.

Isentropic Flow: Nozzle and Diffusers, compressors and turbines – Use of Gas tables. Flow through ducts: Flow through constant area ducts with heat transfer (Rayleigh flow) and Friction (Fanno flow) – Variation of flow properties – Use of tables and charts – Generalized gas dynamics.

Unit 2

Normal and oblique shocks: Governing equations – Variation of flow parameters across the normal and oblique shocks – Prandtl Meyer relations – Expansion of supersonic flow, Use of table and charts – Applications.

Unit 3

Jet propulsion: Theory of jet propulsion – Thrust equation – Thrust power and propulsive efficiency – Operation principle – cycle analysis and use of stagnation state performance of ram jet, turbojet, turbofan and turbo-prop engines – Aircraft combustors.

Space propulsion: Types of rocket engines – Propellants – Ignition and combustion – Theory of rocket propulsion – Performance study – Staging – Terminal and characteristic velocity – Applications – Space flights.

Text Books

  • John D. Anderson Jr. – ‘Modern Compressible Flow with historical perspective’ – McGraw Hill Publishing company – International Edition – 1990 – 2nd Edition
  • Yahya S. M. – ‘Compressible Flow’ – Tata McGraw Hill India – 2009


  • Balachandran P. – ‘Fundamentals of Compressible Fluid Dynamics’ – PHI Learning India Private Ltd. – 2009
  • Cohen H., Rogers G. E. and Saravanamuttoo – ‘Gas Turbine Theory’ – Longman – 1980
  • Sutton G. P. – ‘Rocket Propulsion Elements’ – John Wiley, New York – 1986.
  • Shapiro A. H. – ‘Dynamics and Thermodynamics of Compressible Fluid Flow – Vol.I’ – John Wiley, New York – 1953
  • Radhakrishnan E. – ‘Gas Dynamics’ – Prentice-Hall of India Pvt. Ltd – 2004

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