What is the symbol of the wind?

1 vertical pole 1 horizontal wind force is 1-2.

1 vertical bar 2 horizontal wind 3-4.

1 vertical bar 3 is horizontal wind force 5-6.

1 vertical bar 4 The horizontal wind force is 7-8.

1 vertical line 1 triangle is the wind above 8.

Wind speed is the forward speed of the wind. The greater the air pressure difference between two adjacent places, the faster the air flow, the greater the wind speed and the greater the wind force. Therefore, the magnitude of wind is usually expressed by wind power. The unit of wind speed is meters per second or kilometers per hour. When the weather forecast is released, the wind level is mostly used.

Research progress of wind energy forecasting methods

China is rich in wind energy resources, but the research on wind energy prediction is still very weak. There are almost no objective and quantitative forecasting methods for wind energy in wind farms.

Wind energy prediction, in fact, the most important thing is to predict the wind field reasonably and accurately, and then get the wind power prediction. The international wind energy forecasting methods include statistical forecasting, dynamic forecasting (including downscaling forecasting and comprehensive forecasting) and wind power forecasting.

The prospect of wind energy utilization is broad, but two problems need special attention in wind energy utilization. One is the location of the fan, and the other is the impact of the fan on the environment.