JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Pre-Requisites

High Speed Aerodynamics

Course Objectives:

• Knowledge in basics of hypersonic and supersonic aerodynamics
• Acquiring knowledge in theory of hypersonic flow.
• Understanding of boundary layers of hypersonic flow and viscous interaction
• Role of chemical and temperature effects in hypersonic flow.

Course Outcomes:

• To introduce fundamental concepts and features peculiar to hypersonic flow to students to familiarize them with the aerodynamical aspects of hypersonic vehicles and the general hypersonic flow theory.

UNIT - I

Fundamentals Of Hypersonic Aerodynamics: Introduction to hypersonic aerodynamics – differences between hypersonic aerodynamics and supersonic aerodynamics - concept of thin shock layers and entropy layers – hypersonic flight paths – hypersonic similarity parameters – shock wave and expansion wave relations of inviscid hypersonic flows.

UNIT - II

Simple Solution Methods For Hypersonic Inviscid Flows: Local surface inclination methods – Newtonian theory – modified Newtonian law – tangent wedge and tangent cone and shock expansion methods – approximate methods - hypersonic small disturbance theory – thin shock layer theory.

UNIT - III

Viscous Hypersonic Flow Theory: Boundary layer equations for hypersonic flow – hypersonic boundary layers – self similar and non self-similar boundary layers – solution methods for non self similar boundary layers – aerodynamic heating and its adverse effects on airframe.

UNIT - IV

Viscous Interactions In Hypersonic Flows: Introduction to the concept of viscous interaction in hypersonic flows - Strong and weak viscous interactions - hypersonic viscous interaction similarity parameter – introduction to shock wave boundary layer interactions.

UNIT - V

high temperature effects in hypersonic flows: Nature of high temperature flows – chemical effects in air – real and perfect gases – Gibb’s free energy and entropy - chemically reacting boundary layers – recombination and dissociation.

TEXT BOOKS:

• 1. John D. Anderson. Jr., “Hypersonic and High Temperature Gas Dynamics”, McGraw hill Series,New York, 1996.

REFERENCE BOOKS:

• 1. John D. Anderson. Jr., “Modern Compressible flow with historical Perspective”, McGraw Hill Publishing Company, New York, 1996.
• 2. John T. Bertin, “Hypersonic Aerothermodynamics”, published by AIAA Inc., Washington. D.C., 1994 .