Comprehensive environment wind tunnel simulation device

Abstract

The invention discloses a comprehensive environment wind tunnel simulation device, which is applied to the field of environmental wind tunnel simulation devices. The comprehensive environment wind tunnel simulation device comprises a power section, a snowflake generation section and a test section which are sequentially arranged, wherein the power section is internally provided with a fan; the front end and the rear end of the snowflake generation section are provided with a liquid nitrogen spraying ring and a water mist spraying ring with the inner side being provided with a plurality of nozzles in the circumferential direction, the liquid nitrogen spraying ring is connected with a liquid nitrogen source pipe, and the water mist spraying ring is connected with a water source pipe througha water mist generator; the test section is internally provided with a platform for bearing an experimental model, a vibration generator is connected below the platform, and a raining device is arranged above the platform; and the raining device is connected with a water source through a pressure pump. There are wind tunnels which separately simulate a blizzard environment, a rainstorm environmentor an earthquake environment at present, but a wind tunnel test system capable of simulating the comprehensive environment is unavailable, so that wind tunnel simulation cannot be performed on an extreme but actually existing environment in which blizzard earthquake and rainstorm earthquake interact. The comprehensive environment wind tunnel simulation device can solve the problem and has important practical significance and theoretical research values.

Description

technical field [0001] The invention belongs to the field of environmental wind tunnel simulation devices, and in particular relates to a comprehensive environmental wind tunnel simulation device. Background technique [0002] Snowstorms, storms, and earthquakes are all harsh environments that can cause destructive effects on buildings or bridge structures, especially when multiple environments act together, the destructiveness is even greater. The wind and snow environment will cause uneven distribution of snow on the roof of the long-span structure, which will easily cause local instability of the structure and lead to overall collapse and damage; the storm environment will cause such as building erosion or loose foundations and instability; earthquake environment , the destructiveness it causes is self-evident. When an earthquake occurs in a local area, a large amount of dust and particles will increase in the air; the huge shock wave of the earthquake will also continuo...

AI Technical Summary

Problems solved by technology

[0003] At present, there are wind tunnel test devices for the environment that can individually simulate wind and snow environments, storm environments, or earthquake environments, but there is a lack of wind tunnel test systems that can simulate comprehensive environments. Wind tunnel simulation in real environment

At present, it is limited to numerical simulation analysis based on classical assumptions, which makes the reliability and accuracy of numerical simulation methods still to be discussed, and also limits the development of numerical simulation methods.

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