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Aerodynamic design of a dual-flow mach 7 hypersonic inlet system for a turbine-based combined-cycle hypersonic propulsion system
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Sanders, Bobby W. Weir, Lois J. |
| Copyright Year | 2008 |
| Description | A new hypersonic inlet for a turbine-based combined-cycle (TBCC) engine has been designed. This split-flow inlet is designed to provide flow to an over-under propulsion system with turbofan and dual-mode scramjet engines for flight from takeoff to Mach 7. It utilizes a variable-geometry ramp, high-speed cowl lip rotation, and a rotating low-speed cowl that serves as a splitter to divide the flow between the low-speed turbofan and the high-speed scramjet and to isolate the turbofan at high Mach numbers. The low-speed inlet was designed for Mach 4, the maximum mode transition Mach number. Integration of the Mach 4 inlet into the Mach 7 inlet imposed significant constraints on the low-speed inlet design, including a large amount of internal compression. The inlet design was used to develop mechanical designs for two inlet mode transition test models: small-scale (IMX) and large-scale (LIMX) research models. The large-scale model is designed to facilitate multi-phase testing including inlet mode transition and inlet performance assessment, controls development, and integrated systems testing with turbofan and scramjet engines. |
| File Size | 10285402 |
| Page Count | 92 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20080030791 |
| Archival Resource Key | ark:/13960/t9382bg61 |
| Language | English |
| Publisher Date | 2008-06-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Performance Tests Two Phase Flow Hypersonic Flight Supersonic Speed Control Systems Design Supersonic Combustion Ramjet Engines Engine Inlets Turbofan Engines Hypersonic Inlets Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
