General Considerations
Characteristics General features of hypersonic flow field. Assumptions underlying inviscid hypersonic theory. Normal shock waves, oblique & curved shocks. Mach number independence principles. General strip theory.
Small Disturbance Theory
Introduction to basic equations. Hypersonic Similitude, United supersonichypersonic similitude. Slender – body strip theory.
Small Disturbance Theory
Slightly blunted slender bodies, large incidence & correlation of Similitude. Unsteady flow theory. Non equilibrium effects.
Newtonian Theory
Two-dimensional axis symmetric bodies, simple shapes & free layers. Optimum shapes, shock layer structure.
Newtonian Theory
Shock layer structure with cross flow. Conical flow, bodies of revolution at small incidences.
Theory of Thin Shock Layers
Basic concepts, successive approximation schemes. Constant stream tube-area approximation. Two-dimensional axis symmetric blunt faced bodies.
Viscous Flows
Hypersonic Viscous effects, Boundary Layer equations. Similar laminar boundary layer solutions. Local similarity concept. Viscous interactions - flow models and interaction parameters. Weak pressure interaction. Strong pressure interaction. General features of rarified gas flows.
Hypersonic Testing
Hypersonic Scaling, high enthalpy & high speed, types of hypersonic facilities. Shock tunnels & expansion tubes. Features of Hypersonic wind tunnel design. Instrumentation to hypersonic vehicle testing. Test model similarity laws.
Course outcomes:
At the end of the course the student will be able to:
1. Apply knowledge of oblique and curved shock waves and shock wave structure
2. Solve problems related to hypersonic viscous effects
3. Model hypersonic wind tunnel testing
Question paper pattern:
The SEE question paper will be set for 100 marks and the marks scored will be proportionately reduced to 60.
Textbook/ Textbooks
1 Hypersonic Inviscid Flows Wallace D Hayes & Ronald F Probstein Dover Publication 2004
2 Hypersonic Flow Theory Wallace Hayes Academic Press Inc 1959
Reference Books
1 Hypersonic and High Temperature Gas Dynamics John D Anderson Jr AIAA 2000
2 Advanced Hypersonic Test Facilities Frank K.Lu and Dart E. Marran AIAA 2002
3 Introduction to Hypersonic Flow Cherynl C.G. Academic Press 1961