エッジ音の制御に関する実験研究 Experimental Study on Control of Edge Tone
The purpose of this paper is to control edge tone generated by flow of a jet-wedge system. An attempt to control the edge tone has been carried out by attaching projecting objects to the nozzle exit. It is found that the edge tone is reduced even though a pair of projecting objects is attached to the nozzle exit. In addition, the effect of attached projecting objects upon the spectrum intensity of predominant frequency of the pressure fluctuation at the wedge is examined. We also found that the spectrum intensity decreases with the increase of the number of projecting objects. The spectrum intensity is minimized at the point which is located downstream from the position of the attached projecting objects.
- 日本航空宇宙学会誌 = Journal of the Japan Society for Aeronautical and Space Sciences
日本航空宇宙学会誌 = Journal of the Japan Society for Aeronautical and Space Sciences 45(522), 404-410, 1997-07