ACTIVE SIMULATION OF WIND GUST FOR TWO DIMENSIONAL WIND TUNNEL TEST
نویسندگان
چکیده
منابع مشابه
Three-Dimensional Wind Simulation
A method for numerically simulating a three-dimensional field of turbulent windspeed (the “Sandia method”) for use in the aerodynamic and structural analyses of wind turbines is presented. The required inputs are single point power spectral densities (PSDs) and the coherence function. Suggestions for appropriate inputs and an example calculation are included. The simulation method is used to ob...
متن کاملDescription and Simulation of Gust Front Wind Field
An efficient model for simulating gust front wind field is proposed based on the time-frequency description of the wind field. Traditionally, transient or non-stationary random processes are simulated to account for amplitude modulations invoking envelop processes to shape these modulations. In this study, a time-frequency based scheme is introduced to account for both modulations in amplitude ...
متن کاملAerodynamic Analysis and Wind Tunnel Test for Flapping-wing Mavs
A lightweight flapping-wing micro air vehicle (MAV) was designed and built and successfully filed in the sky. The unsteady aerodynamics associated with this MAV was detailedly studied by using the method of computational fluid dynamics (CFD).The variations of different parameters of the flapping MAV, such as flapping amplitude, pitch amplitude and flapping frequency, were investigated with nume...
متن کاملExperimental wind tunnel testing of linear individual pitch control for two-bladed wind turbines
In this paper Linear Individual Pitch Control (LIPC) is applied to an experimental small-scale two-bladed wind turbine. LIPC is a recently introduced Individual Pitch Control (IPC) strategy specifically intended for two-bladed wind turbines. The LIPC approach is based on a linear coordinate transformation, with the special property that only two control loops are required to potentially reduce ...
متن کاملDesign Proposal for Three Two-Dimensional Wind Tunnel Nozzles for Supersonic Probe Calibration
Although newer techniques such as laser Doppler and hot-wire anemometry have emerged, aerodynamic probes remain the best tools for the analysis of flows in turbomachines. Based on the nature of how these probes accomplish this analysis, they must be calibrated in well known flows prior to use. This calibration takes place in wind tunnels with uniform, parallel flows at precise Mach numbers. The...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Doboku Gakkai Ronbunshu
سال: 1991
ISSN: 0289-7806,1882-7187
DOI: 10.2208/jscej.1991.432_89