Wind-tunnel modelling device for sandstorm entironment and engineering

Abstract

The invention discloses a wind sand environment and engineering wind tunnel simulation device, in particular to a large opening direct-flow air blowing typed wind sand environment and engineering wind tunnel simulation device which is specially used for simulating wind sand movement and sand control engineering; the wind sand environment and engineering wind tunnel simulation device comprises a tunnel body which comprises an air inlet section (3), a transition section (4), a damp part with a damper (5), a first diffuser (6), a stabilization section (7), a contraction section (8), a speed vehicle (9), a testing section (10) and a second diffuser (11) which are sequentially connected one after another; and the power system is connected with the air inlet section (3) and is used for providing the power for the wind tunnel by a DC motor. The wind sand environment and engineering wind tunnel simulation device can truly simulate the wind sand control, thus pushing the wind sand control technique to go ahead; furthermore, the wind sand environment and engineering wind tunnel simulation device can carry out the test for preventing the diffusion of contamination and the test for the building dynamics characteristic and the like.

Description

technical field [0001] The invention relates to a large opening direct-flow blowing sand blowing environment and engineering wind tunnel simulation device specially used for simulating wind and sand movement and sand prevention and sand control projects. Background technique [0002] my country is one of the countries most seriously affected by wind and sand in the world, and the annual direct loss caused by wind and sand is as high as 54 billion yuan. Wind and sand disasters have seriously endangered people's lives, restricted the coordinated development of the social economy, and become a serious problem for the Chinese nation. According to incomplete statistics, about 10 million mu of arable land, 1.58 billion mu of grassland, 1.5 million mu of woodland and shrub grassland have been degraded due to wind and sand disasters. 47 large and medium-sized cities, 172 counties, more than 24,000 villages, and 1,400 kilometers of railway , 30,000 kilometers of roads and more than ...

AI Technical Summary

Problems solved by technology

Taking a comprehensive look at the functions and main research directions of domestic and foreign laboratories dedicated to wind and sand environment research, there is currently no laboratory specializing in wind and sand environment engineering technology, especially the combination of wind tunnel for wind and sand environment engineering and field wind and sand comprehensive observation test field for effective technology development and integration

At the same time, the existing small and medium-sized wind tunnels dedicated to the study of wind-sand environment have a maximum boundary layer thickness of no more than 18 cm, which cannot meet the needs of the current study of wind-sand environment, especially large-scale wind-sand engineering.

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