中国航空学报(英文版)
中國航空學報(英文版)
중국항공학보(영문판)
CHINESE JOURNAL OF AERONAUTICS
2001年
4期
200-204
,共5页
栅格翼%尾流%发卡涡%干扰阻力
柵格翼%尾流%髮卡渦%榦擾阻力
책격익%미류%발잡와%간우조력
介绍了在水漕中用氢气泡法显示的斜置蜂窝式栅格翼尾流流态,发现在中等迎角下,相交翼元的每个交叉处邻近壁面的尾流中,有伴随着壁面流动分离而周期性脱落的发卡涡,它们相互连接,形成“涡链”。还介绍了栅格翼尾流中发卡涡的主要流动特征,并对其产生的流动机理作了初步探讨。
介紹瞭在水漕中用氫氣泡法顯示的斜置蜂窩式柵格翼尾流流態,髮現在中等迎角下,相交翼元的每箇交扠處鄰近壁麵的尾流中,有伴隨著壁麵流動分離而週期性脫落的髮卡渦,它們相互連接,形成“渦鏈”。還介紹瞭柵格翼尾流中髮卡渦的主要流動特徵,併對其產生的流動機理作瞭初步探討。
개소료재수조중용경기포법현시적사치봉와식책격익미류류태,발현재중등영각하,상교익원적매개교차처린근벽면적미류중,유반수착벽면류동분리이주기성탈락적발잡와,타문상호련접,형성“와련”。환개소료책격익미류중발잡와적주요류동특정,병대기산생적류동궤리작료초보탐토。
The flow patterns of the wake of an oblique honeycombed grid fin were visualized by hydrogen bubbles technique in a water channel. It was found that the hairpin vortices existed in the wake of surfaces in the neighborhood of each crossing of intersecting elements at moderate angles of attack. They shed periodically following the flow separation on surfaces and connected each other into chains. The main features of the flow patterns are presented and the flow mechanism concerned is preliminarily discussed.