@article{oai:niigata-u.repo.nii.ac.jp:00003707, author = {藤沢, 延行 and 河野, 隆志 and 高野, 剛}, issue = {648}, journal = {日本機械学会論文集. B編, 日本機械学会論文集. B編}, month = {Aug}, note = {The performance of active feedback control of edge tone phenomenon by the control flow is investigated experimentally and the mechanism is discussed. It is found that the pressure fluctuations over the edge surface are reduced by this control roughly to those of the free jet. The optimum conditions for the phase lag and amplitude of the control flow are obtained quantitatively for various edge distances from the jet nozzle. These results show that the present control technique is very effective for weakening the flow oscillation of the jet-edge system. The flow visualization study suggests that the control mechanism is due to the cancellation of pressure fluctuations created at the edge by the imposed velocity fluctuations.}, pages = {2073--2078}, title = {エッジトーン現象のアクティブ制御と制御機構に関する基礎研究}, volume = {66}, year = {2000} }