3730 吸込み型低騒音風洞の開発(J13-5 流動励起騒音(2)(キャビティ等),J13 流体関連の騒音と振動)

概要

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The aim of this investigation is to develop a low noise wind tunnel with low temperature drift. The pressure sensitive paint (PSP) is the most suitable method for measurement of surface pressure. However, an accuracy of PSP strongly depends on the temperature of the circumstance. Since the temperature drift of conventional low-noise wind tunnel, it is difficult to utilize PSP in low-noise wind tunnel. The suction typed low-noise wind tunnel was developed, which had a high air-tightness chamber. An un-uniformity of the velocity distribution was 0.1% in the cross section. An aerodynamic sound can be measured in the open test section of the suction typed wind tunnel with a high air-tightness chamber. The temperature drift was only 0.1 degree. As a result, the suction typed low-noise wind tunnel can be applied to correlation measurement of surface pressure and aerodynamic sound with PSP.
一般社団法人日本機械学会の論文
2006-09-15