NASA Dryden Flight Research Center has developed a flush airdata sensing (FADS) system on a sharp-nosed, wedge-shaped vehicle. This paper details the design and calibration of a real-time angle-ofattack estimation scheme developed to meet the onboard airdata measurement requirements for a research vehicle equipped with a supersonic-combustion ramjet engine. The FADS system has been designed to ...

The article discusses the features of process interaction blades teeth disk working body with cultivated soil. If we take into account fact that parameters intensity impact exerted on soil by toothed will depend speed movement, it be possible to determine values an arbitrary point blade teeth. As a result mathematical transformations and application method differentiation equation their displac...

Measurements of the flow field around a low pressure turbine blade are presented. The purpose of the experimental study is to investigate the detailed transition and separation characteristics on low pressure turbine blades. The present study focuses on the effect of Reynolds number on the formation of separation bubbles on the turbine blade surface. Specific attention is paid to the flow withi...

We present results from a combined experimental and numerical investigation of the flow around rectangular NACA 0012 wing, whose tip geometry is modified by addition perpendicular fin. The purpose this modification to generate system two closely-spaced concentrated vortices, instead familiar single trailing vortex. Experiments were carried out in water tunnel, where velocity measurements made n...

The influence of the outer reinforcement layers on repair structure and aerodynamic performance was studied. Firstly, a continuous damage mechanics model established, 3D Hashin criterion cohesive zone material were used to analyze model. failure load deviation 5.5%. Secondly, basis γ−Reθ transition SST–ω turbulence model, analysis DU300 airfoil established. numerical simulation results showed t...