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Wind tunnel for researching snow drift

A wind tunnel and snow accumulation technology, applied in the field of wind tunnels, can solve the problems of inability to measure the wind pressure distribution of buildings under the combined effect of wind and snow, the influence of wind vibration response, and the inability to simulate the process of snowfall, etc.

Inactive Publication Date: 2018-02-02
CHONGQING JIAOTONG UNIVERSITY
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Problems solved by technology

The backflow wind tunnel has the advantages of high design wind speed, good flow field performance, and energy saving, but it is not suitable for complex environment simulations such as snow, fog, and sand; but the current wind tunnel cannot simulate the process of snowfall and snowflakes when the wind blows. In the complex environment of falling with the wind, it is impossible to measure the combined effect of wind and snow on the wind pressure distribution and wind vibration response of buildings

Method used

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  • Wind tunnel for researching snow drift
  • Wind tunnel for researching snow drift
  • Wind tunnel for researching snow drift

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Embodiment Construction

[0031] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] The present invention mainly relates to a wind tunnel for studying snow drift, such as figure 1 , figure 2 , image 3 , Figure 4 As shown, it includes a hole 1 for testing the experimental body 6, an environment simulation device arranged inside the hole 1, a measurement control system and a driving device 5; the environment simulation device includes: a rod 2, one end of which is movable It is arranged on the top surface inside the cave body 1, and can move on the top surface inside the cave body 1, and can also rotate along its axis; One end is arranged opposite to the top surface inside the cave body 1; the snowmaking device is installed inside the wind tunnel, including a water pressure control system electrically connected to the measurement control system, a temperature and humidity control system, an air compressor and a ...

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Abstract

The present invention relates to a wind tunnel for researching snow drift. The wind tunnel comprises a cave body, an environment simulation device arranged inside the cave body, a measurement controlsystem and a driving device. Through an installation rod movably arranged in the cave body, an installation plate which is provided with a spraying head is connected, and the translation and rotationof the installation plate are realized. Through the movable installation plate and a fan set arranged in a matrix, the simulation of a complicated snowfall field and a complex wind field can be realized, thus the relation between a building roof structure and building distribution in a building group and the snow drift under a wind field effect is researched, and wind tunnel plays a guiding role in architectural design and urban planning in an area with heavy snowfall.

Description

technical field [0001] The invention belongs to the field of wind tunnels and relates to a wind tunnel for studying snow drift. Background technique [0002] In areas with high latitude and heavy snowfall, the combined effect of wind and snow will cause uneven distribution of snow on the roof of long-span structures, which will cause local instability of the structure and lead to overall collapse and damage. Therefore, a reasonable wind-resistant The snow design method can improve the safety of structures in wind-snow disasters, which has great practical significance and theoretical value; at the same time, due to the complex terrain in high latitude areas such as Northeast my country, snow drift will affect residents' life and travel and other aspects . At present, due to the lack of a specific wind tunnel test system capable of simulating the wind and snow environment, current research in this field is limited to numerical simulation analysis based on classical assumptions....

Claims

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Application Information

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IPC IPC(8): G01M9/02
Inventor 王旭陈增顺李华强周霄
Owner CHONGQING JIAOTONG UNIVERSITY
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