An overview of some of the activities in hypersonic airbreathing aerodynamics and propulsion airframe integration is presented for the Space Vehicle Technology Institute. The Institute is a multi-university joint NASA-DoD program that was created as a center for research and education in future launch vehicle technologies. Perhaps more than any other type of flight vehicle, next generation spac...

Birds appear to use their tails during flight, but until recently the aerodynamic role that tails fulfil was largely unknown. In recent years delta-wing theory, devised to predict the aerodynamics of high-performance aircraft, has been applied to the tails of birds and has been successful in providing a model for the aerodynamics of a bird's tail. This theory now provides the conventional expla...

This paper presents the implementation of a framework for flight mechanical analysis with adaptable aerodynamics methods in the preliminary stage of aircraft design. Basis to the framework are software modules for the disciplines conceptual design, flight mechanics and aerodynamics which have been developed within different design frameworks and which contain heterogeneous interfaces. The focus...

Current challenges and problems pertaining to the development and application of the DSMC method for high-altitude aerodynamics are discussed. Attention is paid to issues related to the efficiency and accuracy of the method in the near-continuum regime, as well as its use for modeling of rarefied flows with real gas effects. Accurate prediction of force and heat aerodynamic characteristics of r...

Abstract: A novel dynamic co-simulation methodology of overall wind turbine systems is presented. This methodology combines aerodynamics, mechanism dynamics, control system dynamics, and subsystems dynamics. Aerodynamics and turbine properties were modeled in FAST (Fatigue, Aerodynamic, Structures, and Turbulence), and ADAMS (Automatic Dynamic Analysis of Mechanical Systems) performed the mecha...