A multi-fan active control tornado wind tunnel

Abstract

The invention relates to a multi-fan active controlling tornado wind tunnel which mainly comprises a wind tower, a multi-fan section, a rotary disc, a translational motion mechanism and a lifting mechanism. The multi-fan section comprises an upper single-fan section located in the center of the top layer of the wind tower and multiple lower single-fan sections evenly and circumferentially distributed at the bottom of the wind tower, the rotary disc is located at the bottom of the wind tower, the translational motion mechanism is mounted on the upper surface of the rotary disc, and the liftingmechanism is mounted on the translational motion mechanism. The multi-fan active controlling tornado wind tunnel has the advantages of simple structure, the wind tower is integrally of a barrel structure, and blowing and inhaling functions of all the single-fan sections can be achieved; tornados and downburst wind fields can be simulated, translational motion effect of the tornados can be achievedby adjusting the translation motion mechanism, and depth-width ratio of wind fields of the tornados can be adjusted by adjusting a lifting platform of the lifting mechanism in height.

Description

technical field [0001] The invention relates to a multi-fan active control tornado wind tunnel, and relates to the technical field of fluid mechanics. Background technique [0002] Tornado is the strongest vortex phenomenon in the atmosphere, and it has great destructive power. At present, most of the physical simulation devices for the tornado laboratory are built based on the principle of the Ward type simulation system. Although the Ward-type simulation system can simulate a variety of vortex wind fields similar to tornadoes, the system cannot consider the horizontal movement of tornadoes, and it is difficult to adjust the vortex ratio of tornadoes. With the development of science and technology, A. Nishi of Miyazaki University in Japan developed a multi-fan active control wind tunnel based on Teunissen's multi-jet wind tunnel, but the wind tunnel mainly simulates normal wind and fluctuating wind field. The multi-fan active control wind tunnel of the IBHS Research Cente...

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Problems solved by technology

The Tornado Wind Tunnel (WindEEE Dome) at the University of Western Ontario in Canada has 106 fans and a regular hexagonal design, which can simulate tornadoes and downburst wind fields, but the wind tunnel cannot simulate the horizontal movement of tornadoes

The above multi-fan active control wind tunnel simulation function is relatively simple, and the application field is limited

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