Integrated wind tunnel simulating mobile tornado and downburst

Abstract

The invention discloses an integrated wind tunnel simulating mobile tornado and downburst. The integrated wind tunnel comprises a wind tunnel channel in which a simulated test area is provided. A simulated test through hole is arranged on one side of the simulated test area, and a simulated tuyere two-dimensional plane moving device is installed on the simulated test through hole. The simulated tuyere two-dimensional plane moving device comprises a soft shielding belt covering the simulated test through hole, and a simulated tuyere is provided on the soft shielding belt, and the two ends of the soft shielding belt are respectively provided with a simulated tuyere moving mechanism for driving the soft shielding belt to move and enabling the simulated tuyere to move in a two-dimensional plane in the simulated test through hole area. The simulated tuyere moving mechanism comprises an unwinding and rewinding roller for unwinding and rewinding the soft shielding belt and an axial moving mechanism for driving the unwinding and rewinding roller to move in an axial direction thereof. The simulated tuyere moving mechanism also comprises a simulator mount that moves synchronously with the simulated tuyere, and a two-in-one simulator for simulating tornado and downburst is installed on the simulator mount.

Description

technical field [0001] The invention belongs to the technical field of wind tunnels, in particular to an integrated wind tunnel for simulating mobile tornadoes and downbursts. Background technique [0002] The Chinese patent with the publication number CN106918439B discloses a tornado simulator based on a wind tunnel, which mainly includes a wind tunnel, a wind tower, a deflector, a motor, a fairing, a fan rotor, a honeycomb and a lifting platform; wherein, the wind tower as a whole It is a cylinder structure, installed on the outside of the upper wall of the wind tunnel test section; the wind tower mainly includes a rectification device and a flow guide device; the rectification device includes a fairing and a honeycomb; a motor and a fan rotor are installed inside the fairing; The deflector of the vortex wind field; the honeycomb is used for rectification and is parallel to the axis of the motor; the lifting platform is installed between the upper and lower walls of the wi...

AI Technical Summary

Problems solved by technology

When it is necessary to simulate a downburst after simulating a tornado in a wind tunnel test, the tornado simulator needs to be removed and replaced with a downburst simulator, resulting in longer test intervals and complicated operations; Installing a tornado simulator and a downburst simulator at the same time will lead to an increase in investment costs

[0005] In addition, in the prior art, when using the tornado simulator and the downburst simulator to simulate the tornado and the downburst respectively in the wind tunnel, it is necessary to set up a simulated tuyere on the top surface of the wind tunnel, but in the existing wind tunnel, The position of the simulated tuyere is fixed, that is, the tornado simulator and the downburst simulator can only simulate tornadoes and downbursts at fixed positions

However, in natural environments, tornadoes and downbursts often have a certain horizontal velocity, that is, in natural environments, the positions of tornadoes and downbursts are often not fixed, and existing wind tunnels cannot simulate tornadoes in moving states and downburst

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