r the deficiency of the air inlet. The results show that the air leakage rate of the INVELOX air Р gathering device is about 73% due to internal and external connection. The addition of a hood on Р the side and back o£ the intake prevents air leakage and increases the average velocity ratio in the Р Venturi tube from 1.56 to 2.8, increasing the output power by 4.8 times. The improved model can Р greatly reduce the loss of wind energy, and then improve the output power of the wind gathering Р device, which makes the device have better application value.Р Key words： wind gathering device； air leakage； numerical simulation； speed ratio； output Р powerРРР •649 -
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