A multi-vortex tornado generator with adjustable core radius

Abstract

A multi-vortex tornado generating device with adjustable core radius. The fixed pendant is used to connect the top of the outer wall and the outer structure. The main air duct and the outer wall are connected by a rotating device; one end of the horizontal air duct is fixed at the lower part of the main air duct, and the other end is free; horizontal The slide rails are respectively fixed on the lower part of the horizontal air duct for installing the one-way exhaust fan; the upper part of the vertical air duct is fixedly connected with the main air duct, and the lower part is equipped with a two-way exhaust fan; In a tornado-like wind field, the exhaust fan slides radially along the track to change the core radius of the wind field, and the vertical air duct generates a downdraft to simulate a multi-vortex tornado. The device effectively makes up for the defect that the existing tornado simulator cannot change the core radius and simulate multi-vortex tornadoes, and has good scientific research value and broad engineering application prospects.

Description

technical field [0001] The invention relates to the field of engineering structure anti-tornado, in particular to a multi-vortex tornado generating device with adjustable core radius. Background technique [0002] Tornado is the most violent convective storm in the earth's atmosphere, and its maximum wind speed near the ground can reach 170m / s, which belongs to the extreme weather phenomenon in nature. Tornadoes are also one of the wind disasters, and their range of activities is almost all over the world, bringing serious disasters to human beings. The United States is the main area where tornadoes occur in the world, and is known as the "hometown of tornadoes". According to statistics from the Wind Hazard Reduction Coalition, an average of 800-1,000 tornadoes hit the United States every year, killing more than 80 people, injuring more than 1,500 people, and causing direct economic losses of nearly 850 million U.S. dollars. In addition to the United States, my country's J...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the defect that the existing tornado simulator cannot change the core radius and simulate multi-vortex tornadoes, a multi-vortex tornado generating device with adjustable core radius is used to carry out the tornado wind field test simulation closer to the real situation, so that the test results more reliable

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