1st Edition

Aircraft Propulsion

Edited By V. Babu Copyright 2009
    212 Pages
    by CRC Press

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    This book focuses on fundamental concepts in propulsion—particularly gas dynamics, turbomachinery and combustion—and theoretical and practical design aspects of aircraft engines and thermodynamic aspects and analysis. Its pedagogical format enables readers to learn concepts and problem solving and analysis techniques and then use worked examples to understand their application to practical situations in propulsion. Some exercises use thrust calculations based exclusively on military and commercial aircraft engines. The book also introduces advanced concepts on ramjets and scramjets to facilitate advanced studies in propulsion. Written for undergraduate and first-year postgraduate students in mechanical and aerospace engineering, this book is also useful for scientists and engineers working in aerospace propulsion and gas dynamics.

    Modes of thrust generation
    Types of aircraft engines

    Basics of Compressible One Dimensional Flows
    Compressibility of Fluids
    Compressible and Incompressible Flows
    Perfect Gas Equation of State
    Calorically Perfect Gas
    Governing Equations
    Acoustic Wave Propagation Speed
    Reference States
    T-s Diagrams in Compressible Flows

    Basics of Turbomachinery
    Euler’s turbomachinery equation
    Relationship between the fluid mechanics and thermodynamics of turbomachinery process
    Blade design parameters
    Multi stage turbomachines

    Basics of Combustion Thermodynamics
    Enthalpy of formation and sensible enthalpy
    Properties of ideal gas mixtures
    Combustion stoichiometry
    Enthalpy of combustion and calorific value
    Adiabatic flame temperature
    Fuels and their properties

    The Turbojet Engine
    Operation of a Turbojet Engine
    Afterburning Turbojet Engine

    The Turbofan Engine
    Concept of Bypass Engine
    Transonic Fan Stage
    Operation of a turbofan engine

    Thrust Calculations
    Derivation of expression for thrust and TSFC
    Thermodynamics of an ideal turbojet engine
    Thermodynamics of an ideal turbojet engine with afterburning
    Component efficiencies
    Calculation of thrust and TSFC for a turbojet engine
    Thermodynamics of an ideal turbofan engine
    Component efficiency – turbofan engine
    Calculation of thrust and TSFC for a twin spool turbofan engine

    Ramjet and Scramjet Engine
    Supersonic intakes
    Ramjet engine
    Scramjet engine


    Dr. V. Babu is currently an Associate Professor in the Department of Mechanical Engineering at IIT Madras. He received his B.E. in Mechanical Engineering from REC Trichy in 1985 and Ph. D from the Ohio State University in 1991. He worked as a Post-Doctoral researcher at the Ohio State University from 1991 to 1995. He was a Technical Specialist at the Ford Scientific research Lab, Dearborn, Michigan from 1995 to 1998. He joined IIT Madras at the end of 1998. He received the Henry Ford Technology Award in 1998 for the development and deployment of a virtual wind tunnel. He has four U.S. patents to his credit. He has published technical papers on simulations of fluid flows including plasmas and non-equilibrium flows, computational aerodynamics and aero acoustics, scientific computing and ramjet, scramjet engines. His primary research specialization is CFD and he is currently involved in the simulation of high-speed reacting flows, prediction of jet noise, simulation of fluid flows using the lattice Boltzmann method and high performance computing.