A Breeze Wind Tunnel with Open/Closed Double Structure

A dual-structure, wind tunnel technology, applied in the field of fluid mechanics, can solve the problems of high wind speed and high cost, and achieve the effect of low cost, long service life and good visual effect

Active Publication Date: 2015-09-23
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This wind tunnel can generate a turbulent wind field similar to the environment. It is mainly used in building structure analysis experiments. The wind speed generated is relatively high, but the cost is high, and it cannot be directly used to simulate the diffusion experiment of surface gas pollution sources.

Method used

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  • A Breeze Wind Tunnel with Open/Closed Double Structure
  • A Breeze Wind Tunnel with Open/Closed Double Structure
  • A Breeze Wind Tunnel with Open/Closed Double Structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The structure of the closed type wind tunnel of the present invention is a reduced model of a room (see figure 2 ), mainly including the wind tunnel box (G1-7), front panel B1, rear panel B2, and rotating panel B3; among them, the front panel B1 and the rear panel B2 are composed of transparent plexiglass panels, so that a closed air tunnel is formed around the wind tunnel. Transparent structure; each windshield G6 is equipped with a rotating plate B3, the rotating plate B3 has a rotating shaft B31 and two fan mounting holes B32, each fan mounting hole B32 is equipped with a closed fan B33, and the rotating shaft B31 is located on the rotating shaft The center position of the upper and lower ends of the board B3, the rotating board B3 on each window G6 is connected with the window up and down through the rotating shaft B31, and two closed fans B33 with a diameter of 0.14m are installed on the rotating board B3, and the closed fan B33 is located in the fan hole Inside B...

Embodiment 2

[0027] The structure of the closed wind tunnel for simulating the indoor ventilation environment introduced in embodiment 1 can be used for simulating the open structure wind tunnel of the turbulent flow of the outdoor surface environment (see image 3 ). When changing from a closed structure to an open structure, the structure of the wind tunnel box (G1-7) remains unchanged, and the front plate B1 and the rear plate B2 of the closed wind tunnel box in Example 1 are removed (see figure 2 ), the rotating plate B3 on the windshield G6 is removed, the windshield G6 and the air door G7 are closed with plexiglass plates, the front side of the wind tunnel box is the air inlet, and the wind tunnel front plate K1 is installed, the size is width × height is 3m×1m, the wind tunnel front plate K1 is evenly covered with rotating plate K2 (see Figure 5 ), the size of each rotating board K2 is 0.5m×1m in width×height, and there are six rotating boards K2 arranged in total. Each rotating...

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Abstract

The invention discloses an open / closed dual-structure breeze wind tunnel. The open / closed dual-structure breeze wind tunnel is characterized in that the wind tunnel comprises a common part and a matched part, wherein the common part mainly comprises a box body comprising a cross beam, a wind tunnel top plate, a wind tunnel bottom plate, wind tunnel side plates and a wind tunnel front plate, the cross beam is used for supporting the wind tunnel top plate, a wind door is formed on one side plate of the wind tunnel side plates, a wind window is formed on the other side plate, and the wind window and the wind door are arranged in a staggered manner; the matched part is divided into an open accessory and a closed accessory; the open accessory mainly comprises an open wind tunnel front plate, a large rotating plate is vertically mounted on the open wind tunnel front plate side by side, an open fan is mounted on the large rotating plate, the open wind tunnel front plate is assembled at the front of the box body, the wind window is sealed, and the wind door is closed to constitute the open type wind tunnel; and the closed accessory mainly comprises integral closed wind tunnel front and rear plates, a small rotating plate is mounted on the wind window, a closed fan is arranged on the small rotating plate, the closed wind tunnel front and rear plates are respectively assembled on the front surface and rear surface of the box body, and the wind door is opened to constitute the closed type wind tunnel.

Description

technical field [0001] The invention belongs to the technical field of fluid mechanics, in particular to an open / closed dual-structure breeze tunnel, which is mainly used for simulating near-surface breeze airflow. Background technique [0002] Artificial wind tunnel is widely used in aviation, construction and other fields. Because it can obtain experimental data economically, conveniently and accurately, it is of great help to evaluate the flight strategy of aircraft and the structural stability of high-rise buildings. As people pay more and more attention to meteorological and environmental issues, more and more researchers have begun to pay attention to the influence of the surrounding environment of air pollution sources on pollution transmission. experimental platform. Because the surface air flow is mostly breeze turbulence, most of the analysis and research on the surface breeze turbulence at the present stage use the breeze wind tunnel as the research platform. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/02G01M9/04
Inventor 孟庆浩王谦满艳鹏王佳瑛曾明
Owner TIANJIN UNIV
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