Wind tunnel for simulating coupling of wave and moving downburst under action of background wind

Abstract

The present invention discloses a wind tunnel for simulating the coupling of the wave and the moving downburst under the action of background wind. The wind tunnel comprises: a wind tunnel flow passage; a wind tunnel fan; a wave trough; and a downburst simulation device for simulating the downburst in the moving state. The top of the wind tunnel flow passage is provided with a simulated test through hole above the wave trough, and a two-dimensional plane moving device is installed on the simulated test through hole; the two-dimensional plane moving device comprises a soft shielding belt covering on the simulated test through hole, the soft shielding belt is provided with a simulated tuyere, and both ends of the soft shielding belt are respectively provided with a simulated tuyere moving mechanism; the simulated tuyere moving mechanism comprises a receiving and release roller for receiving and releasing the soft shielding belt and an axial moving mechanism for driving the receiving andrelease roller to move in the axial direction of the simulated tuyere moving mechanism; and the downburst simulation device comprises a downburst simulator mounting frame that moves synchronously withthe simulated tuyere, and the downburst simulator mounting frame is provided with a downburst simulator for simulating the downburst.

Description

Technical field [0001] The invention belongs to the technical field of wind tunnels, and specifically is a wind tunnel that simulates the coupling of waves and moving downbursts under the action of background wind. Background technique [0002] There are abundant resources in the marine environment. With the increasingly prominent contradiction between global resource and energy supply shortages and rapid population growth, the development and utilization of marine resources has become a global economic development trend. However, the marine environment is very complex, and the coupling of multiple loads will cause damage to marine engineering over time. Among them, there is a combination of downburst, wave and background wind. Downburst refers to a strong localized downdraft in a thunderstorm cloud. The wind speed will be higher the closer to the ground or sea level, and the maximum wind force can reach 15 levels. The wave load is caused by the relative movement of the wave wa...

AI Technical Summary

Problems solved by technology

Therefore, the existing technical methods can neither consider the interaction and coupling effects of multiple loads, nor can they simulate the changes of loads with space and time, so that the real response of the structure under the coupling effects of multiple loads cannot be obtained.

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