The aerodynamics of a high-speed low-pressure turbine (LPT) cascade were investigated under steady and unsteady inlet flows. tests performed at outlet Mach (M) Reynolds numbers (Re) 0.90 70k, respectively. Unsteady wakes simulated by means wake generator equipped with bars. A bar reduced frequency (f+) ∼0.95 was used for the case. flow field characterized in terms total pressure profile inciden...

The IEA Wind agreement, also known as the Implementing Agreement for Cooperation in the Research, Development, and Deployment of Wind Energy Systems, functions within a framework created by the International Energy Agency (IEA). Views, findings, and publications of IEA Wind do not necessarily represent the views or policies of the IEA Secretariat or of all its individual member countries. Exper...

The paper will review the development and application of mathematical modelling advanced rotorcraft configuration, including compound helicopter configurations tilt-rotor vehicles. model is basis for design flight control system an essential tool to assess flying handling qualities helicopters. As a multi-body system, should consider coupling effects among motion, inertia, structure, aerodynami...

With the world’s growing demand for energy, renewable energy production has become important in providing alternative sources of and reducing greenhouse effect. This study investigates aerodynamics performance WG/EV100 micro–Horizontal Axis Wind Turbine (HAWT) using Computational Fluid Dynamics (CFD). The complexity VAWT aerodynamics, which is inherently unsteady three-dimensional, makes high-f...

The benchmark active controls technology and wind tunnel test program at NASA Langley Research Center was started with the objective to investigate the nonlinear, unsteady aerodynamics and active flutter suppression of wings in transonic flow. The paper will present the flutter suppression control law design process, numerical nonlinear simulation and wind tunnel test results for the NACA 0012 ...