- 著者
 
          - 
             
             中園 与一
             
             川口 太生
             
             山本 直樹
             
             高坂 祐顕
             
             瀬戸 邦聰
             
          
 
          
          
          - 出版者
 
          - 一般社団法人日本機械学会
 
          
          
          - 雑誌
 
          - 年次大会講演論文集 : JSME annual meeting
 
          
          
          - 巻号頁・発行日
 
          - vol.2005, no.7, pp.205-206, 2005-09-18 
 
          
          
          
        
        
        
        In this paper a noise reduction of hole tone influenced by some configurations such as triangular tabs and rotational vanes has been described. As a result, the most effective number of tabs should be four with a tab height of one tenth of the nozzle diameter. The rotational vane enhances the mixing enhancement of the jet, but its rotation doesn't influence the noise reduction greatly. A standing wave of pressure fluctuation for a hole tone is produced not only at the outside of the jet, but also on the inside of the jet.