Spectral analysis of pseudo-wind records

AuthorRamientos, Capistrano Nillama
Call NumberAIT Thesis no. 179
Subject(s)Winds
NoteA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in the SEATO Graduate School of Engineering, Bangkok, Thailand
PublisherAsian Institute of Technology
AbstractCharacteristics of winds such as origin, variation of velocity and yaw with height above the ground, velocity and yaw fluctuations about their means, the atmospheric circulation, gradient and geostropic winds, and tropical cyclones are discussed briefly. A method of generating pseudo-wind records to simulate real wind data as realistically as possible is presented. Parameters include mean velocity and yaw, velocity and yaw fluctuations in independent zones, and frequency of fluctuations about the mean. A power-law profile is used to define the mean velocity variation with height. The wind phenomenon is assumed to be a stationary process and the kinetic energy of the pseudo wind is compared to that of the real wind by: mean energy, standard deviation of energy, autocorrelation functions and energy spectrum. Using appropriate parameters, it is found that real wind data, e.g., during peak, eye, and decaying periods of a hurricane, can be simulated by the proposed method with an error of about 10 percent to the mean energy build-up.
Year1967
TypeThesis
SchoolStudent Research Before 1980
DepartmentOther Field of Studies (No Department)
Academic Program/FoSThesis (Year <=1979)
Chairperson(s)Chiu, Arthur N.L.
Examination Committee(s)Jackson, N. ;Pulmano, Victor A.
DegreeThesis (M. Eng.) - SEATO Graduate School of Engineering, 1967


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