A Study Of The Influence Of Environmental Building On Wind Speed Sensor

As a kind of renewable clean energy,wind has received more and more research and attention in practical application.With the acceleration of urbanization,the influence of environmental factors on the wind speed sensor is more and more significant.Therefore,how to restore the original state of wind observation and historical wind data is the focus of this paper.The main research contents and conclusions of this paper are summarized as follows:Flow based on computational fluid dynamics theory and the coupling control equation,build more three-dimensional physical observation field coupling analysis model,numerical calculation of different buildings windward surface wind speed,wind direction,building height,wind speed sensors distance from buildings,and other factors under the condition of wind speed sensor of measuring error.In this paper,seven geometric models are established and the influence of wind speed sensor under different environmental parameters is analyzed quantitatively.Entrance direction of 0 ° airflow crash into buildings,because of the effect is first formed in the windward side of building a small piece of backflow region,region length of about 1/2 times the building height,the wind at this time the wind velocity,air slowly climb buildings,due to the drag effect on the surface of the building and factors such as friction energy loss,will make the air in the building form apparent airflow vortex area leeward side.Building is verified through the numerical analysis was carried out on the inlet,the windward surface wind speed,the greater the leeward building produces the longer the distance the attenuation degree of extreme value,the attenuation degree is higher,the building the greater the effect on observation on the surface of the leeward wind data.Analysis the result of the main reason is that with the increase of inlet,building leeside of vortex area range,the greater the formation of the longer the race,in order to delay the time of the air flow back to the inlet velocity and distance.By comparing the wind speeds of the different entrances to the different points of entry,the height of the building is ten times higher in the environmental protection act of the weather and the weather,which indicates that ten times the height of the meteorological and meteorological environmental protection regulations is not enough,and it needs to continue to increase the distance.Because the CFD method is only to calculate the finite number of models,if you can get the measurements of the wind speed sensors in any environment,you can correct the wind data,and increase the accuracy of the wind speed data.Based on the neural network algorithm for fitting out of the wind speed observation error correction equation of continuous changes implemented as impact factor to provide accurate fixed target data,thus to revise historical wind data.