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|Other Titles:||THE SPACE TIME CORRELATION OF WIND SPEED FLUCTUATION IN HIGH WIND|
|Authors:||石﨑, 溌雄 |
|Author's alias:||ISHIZAKI, Hatsuo|
|Journal title:||京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B|
|Abstract:||The space time correlations of natural wind are investigated using the horizontal windspeed fluctuation measured in the observation net work where the observational points are ar-ranged two-dimensionally. The isopleths of space correlation coefficients are approximatedby the ellipes. The fitness of this approximation is fairly good. The aspect ratio of these ellipsesis 3 to 4, when the averaging time of wind speed is 1.5 sec. The aspect ratio increases withthe wind speed and the averaging time. Talor's frozen eddy hypothesis is checked by com-paring the traveling distance of turbulent eddy. The traveling speed is estimated 1.14 timesof mean wind speed.|
|Appears in Collections:||No.28 B-1|
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