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Analytical aeropropulsive/aeroelastic hypersonic-vehicle model with dynamic analysis. (English) Zbl 0834.76046

An integrated approach to the flight dynamics of highly integrated hypersonic vehicles (HIHV) is considered. The flight dynamics of HIHV depends on the airframe’s aerodynamic characteristics, engine thrust characteristics, and the integrated external nozzle. Two-dimensional Newtonian theory and two-dimensional shock expansion theory are used to determine the pressure distribution on the forebody and afterbody, consequently. In contrast to a purely numerical methods, this approach permits one to obtain analytical expressions for some key results such as stability derivatives which account for aeropropulsive effects. It is shown that the engine controls (diffuser ratio and fuel flow) significantly affect the forces and moment on the airframe, and an integrated modeling approach is required.

MSC:

76K05 Hypersonic flows
74F10 Fluid-solid interactions (including aero- and hydro-elasticity, porosity, etc.)
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