モアレシュリーレン法による円形および正方形ノズルからの空気不足膨張流の密度測定

フォーマット:

論文

責任表示:

田部井, 勝稲 ; 白井, 紘行 ; 高草木, 文雄

言語:

日本語

出版情報:

日本機械学会, 1991-03-25

著者名:

• 田部井, 勝稲
• 白井, 紘行
• 高草木, 文雄

掲載情報:

日本機械学會論文集. B編

ISSN:

0387-5016    

巻:

57

通号:

535

開始ページ:

966

終了ページ:

970

バージョン:

VoR

概要:

application/pdf<br />Journal Article<br />By using the moire-schlieren method for symmetrical and asymmetrical flow fields, density distributions of underexpanded free jets of air from circular and square nozzles have been measured. Experimental moire image data of the flows, which show the integrated light deflection across the flow, were inverted to an internal density distribution by the numerical inverting method. The experiment was … performed systematically by changing the pressure ratio across the nozzles from 4 to 13. It was found that the density profiles measured in the expanded free jets from a circular nozzle agreed with other experimental results on the whole, and that the results for a square nozzle showed complex flow configurations caused by the nozzle figure, nevertheless, the density distribution on the flow axis was very similar to that for a circular nozzle. 続きを見る