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Any change in wind speed in different height will be?

by:HoldPeak     2020-05-17

high mountain wind speed wind pressure measured data and the change rule of high mountain towering structure design is the main load of wind load. Load code for the wind load of the wind speed data from plain area and the surface of the test results. But different mountain terrain, flat land and sea with different altitude, airflow should not only affected by thermal properties of the terrain ups and downs, and influenced by the dynamic function of relief, the size of wind speed with height change rule cannot be applied in the specification on land and sea wind speed, wind pressure variation with height. We in fuzhou drum mountain 12 o meters tall TV tower made the measured points respectively in 10 meters, 36 meters, 72 meters, 100 meters high, Ann got 1 wind carrying type electric to the anemometer.

this study from the perspective of statistical analysis of the new city double water town wind speed with height changing curve relationship, explore the rule of variation of wind speeds at different heights, bypass the logarithmic law and exponential law wind speed profile model needs to according to the underlying surface conditions and atmospheric stability level to determine the wind index, the problem of using SPSS11. 5 curve parameter estimation function, more changes in wind speed with height in the study area of curve fitting equation, the analysis curve equation of the applicable scope, for the wind energy assessment and reference for the design of the wind resistance coefficient of high-rise buildings.

average wind speed in different height of 0 ~ 23 process lines below:

can be seen from the diagram above, to 10 m high wind speed, wind speed during the day, evening, 50 m and 70 m, by contrast, 30 meters wind days change is not too big. Average wind speed variation of the main reason is that the diurnal variation of the solar radiation caused by the uneven ground heating. After sunrise, the ground thermal non-uniformity is obvious, the ground temperature is higher than the air temperature, air convection, up and down on the momentum exchange, upper momentum downward transfer, reduce the upper wind speed, the lower wind speed increases; After dark, on the other hand. There is a transition layer between the high and low layer and transition layer wind speed change is not obvious, can be seen from the above the station transition layer in the 30 metres. So single wind speed does not reflect the area's characteristics.

high mountain wind speed wind pressure measured data and the change rule of high mountain towering structure design is the main load of wind load. Load code for the wind load of the wind speed data from plain area and the surface of the test results. But different mountain terrain, flat land and sea with different altitude, airflow should not only affected by thermal properties of the terrain ups and downs, and influenced by the dynamic function of relief, the size of wind speed with height change rule cannot be applied in the specification on land and sea wind speed, wind pressure variation with height. We in fuzhou drum mountain 12 o meters tall TV tower made the measured points respectively in 10 meters, 36 meters, 72 meters, 100 meters high, Ann got 1 wind carrying type electric to the anemometer.

two figure drawing to 10 meters high wind speed is greater than 5 m/s and less than 5 m/s (10, 30, 50, 70 meters height when the average wind speed at the time of 0 ~ 23 process line:

can be found from the two figure, night both difference is not big. During the day, when the wind speed is small ( Wind speed is less than 5 m/s) When, as a result of the ground temperature, greater influence on the layers of wind speed, the upper winds down more, with the lower wind speed and converge. When the wind speed is larger, Wind speed is greater than 5 m/s) , less affected, unsegmented and wind speed are consistent.

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