Downburst simulation method

A simulation method and airflow technology, applied in the field of downburst simulation, can solve the problem that the simulation device cannot realize gust simulation, and achieve the effects of reducing the risk of swinging, expanding the test range, and enhancing safety.
CN109029901AActive Publication Date: 2018-12-18LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
Publication Date
2018-12-18

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Abstract

The invention discloses a downburst simulation method. The airflow direction of horizontal incoming air is changed by a diversion piece, the diversion piece can be constantly switched between a vertical state and a horizontal state by control, the horizontal airflow is blown out from a lower end in a longitudinal direction when the diversion piece is in the vertical state, and the horizontal airflow is blown out from an opposite end of a horizontal air inlet. By the downburst simulation method, a large amount of contact surface of the whole simulation device can be fixedly connected with a moving platform, the risk that the simulation device swings during the moving process of the moving platform is reduced, simulation of the simulation device during the moving process can be achieved, andthe safety of equipment is improved.
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Description

technical field

[0001] The invention relates to the field of meteorological simulation wind tunnel tests, in particular to a downburst simulation method. Background technique

[0002] Downburst is a common severe convective special weather. It is a strong low-level wind shear caused by the strong downdraft in thunderstorm clouds violently hitting the ground and diverging along the surface. Its flow field has some characteristics of wall jets. Downburst is a very sudden and destructive strong wind in thunderstorm weather; when a downburst occurs, it is accompanied by extremely strong downdraft and low-altitude wind shear, causing serious damage to buildings and transportation facilities. Lead to huge economic losses and casualties. In order to reduce the harm of downburst, it is necessary to conduct wind tunnel simulation tests to study the wind load characteristics of different physical models in the downburst environment. The currently used physical (or experimental) simu...

Claims

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