Abstract
Modeling and numerically simulating the intersection of semicircular arch and rectangular cross-section under different air inlet directions, studying the law of wind flow and the location of the average wind speed point, and providing a basis for the deployment of wind speed sensors. Through simulation, it is found that the influence of wind speed on wind flow change is very small. The law of wind flow change under different wind speeds is consistent, and the distance between the average wind speed point and the tunnel wall is also consistent. Along the direction of wind flow, the flow field near the roof and the side with larger air volume is relatively stable, which is suitable for the arrangement of wind speed sensors.
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