NASA hypersonic flight demonstrators—overview, status, and future plans

RETRACTED: Thermal protection mechanism of heat pipe in leading edge under hypersonic conditions

“…1,2 Due to a series of outstanding advantages of superior maneuverability, high level of survivability and excellent global strike capability, it has become a major research field in aeronautics and astronautics worldwide. [3][4][5] In order to reduce aerodynamic resistance, an extremely sharp wing leading edge is required and a radius with a magnitude of millimeters is commonly employed. [6][7][8] In contrast to traditional subsonic and supersonic conditions, since the speed of hypersonic aircraft has been raised significantly, high temperature becomes one of the vital features, as most of the kinetic energy of the high speed airflow, just outside the sharp local structure, transforms into internal energy.…”

Heat Flux Measurements in a Scramjet Combustor Using Embedded Direct-Write Sensors

“…H YPERSONIC flight presents considerable advantages in terms of deployment time, range, and survivability [1][2][3]. For many years, scramjet (from "supersonic combustion ramjet") propulsion has been envisioned as the engine concept for hypersonic atmo-spheric flight vehicles.…”

Sensitivity analysis based model validation for Hypersonic Vehicle model

“…The development of guidance and control laws for air-breathing hypersonic vehicles is a formidable task [1] due to the complex interactions between the aerodynamics, propulsion system, and the structural dynamics. In order to design controllers that achieve the required level of performance, much effort is being spent to build dynamical models of air-breathing hypersonic vehicles that capture the multi-disciplinary nature of the problem, yet are designed in such a way that a control engineer can obtain a fundamental understanding of the dynamics of the vehicle system at hand [2] .…”