Hypersonic Technology for Military Application -- Copyright -- Contents -- Executive Summary -- MILITARY APPLICATIONS -- NATIONAL AEROSPACE PLANE PROGRAM -- TECHNOLOGY ASSESSMENT -- Propulsion-Airframe Integration -- Propulsion Systems -- Aerodynamics -- Control, Guidance, and Information Systems -- Materials, Structures, and Cooling -- The Role of Computational Fluid Dynamics -- Test Requirements -- Introduction -- 1.0 Potential Military Hypersonic Applications -- 2.0 Technologies Relevant to Hypersonic Vehicles and Their Status -- 2.1 AERODYNAMIC-PROPULSIVE INTEGRATION -- 2.2 PROPULSION SYSTEMS -- 2.2.1 Basic Scramjet Engine -- 2.2.2 Cooling Problems -- 2.2.3 Propulsion System Transition -- 2.2.4 Auxiliary Rocket Propulsion -- 2.3 AERODYNAMICS -- 2.3.1 Viscous Effects -- 2.3.1.1 Transition Point Determination -- 2.3.1.2 Extent of the Transition Region -- 2.3.1.3 Turbulent Boundary Layer -- 2.3.1.4 Test Conditions -- 2.3.2 Real Gas Effects -- 2.3.3 Real Gas Effects in Complex Flows -- 2.4 CONTROL, GUIDANCE, INSTRUMENTATION, AND INFORMATION SYSTEMS -- 2.4.1 Physical Factors -- 2.4.2 Vehicle Dynamics and Controls -- 2.4.2.1 "Aerodynamic-Attitude" (Angle of Attack and Sideslip) Control -- 2.4.2.2 Integrated Propulsion/Flight Control and Guidance -- 2.4.2.3 Aerothermoelastic and Slosh Mode Characteristics and Control -- 2.4.2.4 Engine/Inlets/Diffuser, etc., Control -- 2.4.3 Sensors -- 2.4.4 Information System Requirements -- 2.4.5 System Design Philosophy -- 2.5 MATERIALS FOR HYPERSONIC VEHICLES -- 2.5.1 Introduction -- 2.5.2 High Temperature Materials -- 2.5.2.1 The Aluminides -- 2.5.2.2 Superalloys -- 2.5.2.3 Dispersion Strengthened (Stabilized) Alloys -- 2.5.2.4 Carbon-Carbon Composites And Ceramic Composite Materials -- 2.5.2.5 Processing Developments For Advanced Metallic Materials -- 2.5.2.6 Other Developments -- 2.5.3 Coatings.

2.6 THE STRUCTURAL CHALLENGE -- 2.6.1 Determination of Structural Mass Fraction for High Performance Vehicles -- 2.6.2 Structural Concepts -- 2.6.3 Development Process -- 2.6.4 Status of Structural Concepts for Hypersonic Vehicles -- 2.6.5 Structural Design Considerations -- 2.6.5.1 The Structural Designer's Approach, Circa 1988 -- 2.6.5.2 The Aerodynamic Heating Phenomena -- 2.6.5.3 The Temperature Distribution in the Structure -- 2.6.5.4 Structural Effects of High Temperatures -- 2.6.5.5 Summary -- 2.7 ROLE OF COMPUTATIONAL FLUID DYNAMICS -- 2.7.1 Status of Hypersonic CFD -- 2.7.1.1 External Aerodynamics -- 2.7.1.2 Inlet Flows -- 2.7.1.3 Combustion Flows -- 2.7.1.4 Nozzle Flows -- 2.7.2 Validation of Hypersonic CFD Codes -- 2.7.3 Future Role of CFD -- 2.8 EXPERIMENTAL CAPABILITIES -- 2.8.1 Test Requirements -- 2.8.2 Aerodynamic Test Capabilities -- 2.8.3 Materials and Structures Test Facilities -- 2.8.3.1 Structures Testing -- 2.8.3.2 Facilities -- 2.8.3.3 High-Speed Wind Tunnel Tests -- 2.8.3.4 Laboratory Tests with Heating Devices -- 3.0 Findings and Recommendations -- 3.1 POTENTIAL MILITARY HYPERSONIC APPLICATIONS -- 3.2 PROPULSION-AIRFRAME INTEGRATION -- 3.3 PROPULSION SYSTEMS -- 3.4 AERODYNAMICS -- 3.4.1 Low Hypersonic Speeds (Mach Numbers 6 to 10) -- 3.4.2 High Hypersonic Speeds (M > 10) -- 3.5 CONTROLS, GUIDANCE, INSTRUMENTATION AND INFORMATION PROCESSING -- 3.6 HIGH TEMPERATURE MATERIALS, CRYOGENICS, AND COOLING -- 3.7 STRUCTURAL CONCEPTS -- 3.8 THE ROLE OF CFD -- 3.9 TEST REQUIREMENTS -- Appendix A: Statement Of Task -- Appendix B: Acronyms -- Appendix C: Glossary -- Appendix D: Dimensionless Groups In Fluid Mechanics -- Appendix E: Letter To National Aerospace Plane Contractors -- INTRODUCTION -- BROAD ISSUES -- TECHNOLOGICAL ISSUES -- Hypersonic Propulsion -- Low Speed Propulsion -- Boundary Layer Transition -- Vehicle Heating.

Structures and Materials -- Control -- Systems Integration -- System Concept -- Appendix F: Schedule of Committee Meetings -- AGENDA -- AGENDA -- AGENDA -- AGENDA -- AGENDA -- AGENDA.