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space propulsion



At the graduate level, this text book presents the methods of performance prediction and internal ballistics design of chemical rockets. Such a pedagogical presentation has been unavailable so far. The book is based on my lectures that I delivered for many years to the senior-undergraduate and graduate students at the IIT Madras and the universities elsewhere, and to the practicing scientists/engineers in the Indian rocket-industries. The co-author of the book Dr. Jeenu Raghavan is a senior engineer/scientist in the Indian Space Research Organisation.

The book has two parts: (1) Rocket Performance Calculation of Propellants and Internal Ballistics Design and (2) Internal Ballistics Design of Solid Rocket Motors.

The first part details the energy-minimization method to calculate the propellant-combustion composition together with the internal ballistics ─ considering separately the shifting equilibrium flow and the frozen flow in nozzles. The topics such as chemical potential, pressure and temperature derivatives, and isentropic exponent, which are frequently considered to be complex by students, are discussed in detail.  Internal-envelope designs of proven liquid engines are analysed through worked examples.

The second part deals with the internal-ballistics computation of solid motors considering ignition transient, equilibrium operation, and tail-off transient. Both the less rigorous equilibrium-pressure analysis and the rigorous incremental-analysis are detailed. A FORTRAN design-code, adopting the incremental analysis along with Lenoir & Robillard erosive burning model, is included. The source file and exe file of the code, and many design problems with their solved computer-outputs are available at the provided digital link.

In both the parts, in addition to many worked examples, several design problems with answers are given at the end of each chapter. For the given problems, the solution manual is made available to instructors.

The material presented in the book can be covered in about 40 lecture hours with equal time for each part.
This text book is suitable for instruction to senior undergraduate and graduate students, and for professional development courses as well as reference to practicing engineers and scientists in rocket industries.

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