| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a circular stream type open type wind tunnel device capable of securing sufficient wind tunnel performance.SOLUTION: With a circular stream type open type wind tunnel device, an opening 30 for recycling part of an air stream made to flow into a diffusion barrel 24 via a suction port 16 is provided on the side face of the diffusion barrel 24. With the opening 30, an air flow deflection plate 31 is provided in the diffusion barrel 24. The air flow deflection plate 31 is rotatably adjustable in the diffusion barrel 24 with the edge of the most downstream side of the opening 30 being a supporting point. The air flow deflection plate 31 deflects part of the air flow flowing in the diffusion barrel toward the opening 30.</p> |
