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Two independent systems for determining wind speed and turbulence levels are being used in an on-shore diffusion study on Long Island near Brookhaven National Laboratory. Results obtained from the two instrument systems are compared to illustrate the differences in the measured values of the vector wind, mean wind speed, variance, turbulence level and energy spectra. Details of the physical characteristics and relative advantages of a commercial Vector Vane and a three-dimensional hot-film sensor are also presented. Measurements of the mean wind speed and the turbulence level compared well. The Vector Vane underestimated spectral densities for frequencies above 1 hertz. (auth)
All Suitable data in the National Climatic Center archives, for 758 stations, have been analyzed for monthly, seasonal, and annual average wind power. Results have been assembled in maps with equal power (isodyn) contours to show geographic regions most suitable for wind power exploitation.
Presented at ihe Ninth Meeting of the Supersonic Wind-Tunnel Assoc., Univ. of Southern Calif., and U. S. Naval Air Missile Test Center, Point Mugu, Calif., Apr. The Sandia 12 x 12-inch, transonic, blowdown tunnel facility is being equipped with a 10-channel digital datagathering system. The design and operation of ihe system are discussed. (W.J.H.)
Operations-Driven Reliability and the Journey to Excellence: How Quality, Data and Prioritization Benefit Operations and Maintenance.
Overview: Introduction Blade Testing at WMC Full Scale Fatigue Tests Advances in bi-axial fatigue testing Concluding remarks
CACTUS simulation of the wake of a three-bladed Darrieus vertical-axis wind turbine