Numerical research on flow field characteristics of wind gathering device based on structural optimization
The INVELOX wind power generation system is a kind of wind collection system with ducts,which can obtain wind power in multiple directions and at low wind speeds.The system efficiency depends on the ratio of the wind speed of incoming wind direction to the average wind speed of the venturi,that is,the velocity ratio SR.In this paper,model optimization was carried out based on INVELOX system,and taking the design of a small style wind collection device as the research object.The fluid dynamics calculation software XFlow based on Lattice Boltzmann method(LBM)was used to numerically simulate the flow field characteristics of the device at different wind speeds.By calculating the SR ratio in the Venturi tube,the critical working wind speed was 3 m/s.Through the analysis of the V-SR diagram,it can be concluded that the device enhanced the wind speed in the environment with the increase of the wind speed in the flow field.At the same time,considering the application in the environment,taking 6 m/s as the wind speed of the flow field and carrying out the simulated analysis of the horizontal and oblique incoming wind to obtain the wind speed variation in the working section of the Venturi tube at different Angle of attack,which provides a reference for the engineering application of the energy acquisition device.
wind harvesting deviceflow field characteristicsSR valueLattice Boltzmann methodINVELOX
万方数据
维普
