【摘要】 本文通过实验和理论分析,集中研究小展弦细长翼的翼身组合体的大迎角横向气动特性。研究表明,在大迎角定常非对称涡的范围内,由于翼身组合段对后柱体的边界层分离起遮蔽作用,大大削弱了非对称头涡在后柱体上诱导的侧力。实验证实,平置式翼身组合体的侧力要比单独体的侧力大;带两对弹翼的一般翼身组合体,它的侧力主要由前体以及弹翼组成,如果前体涡在弹翼上诱导的侧力与前体的侧力同向,则该侧力要比平置式布局" ○ "的侧力大得多。更多还原

【Abstract】 An investigation which concentrate to lateral directional aerodynamic characteristics of wingbody combination with lowaspectratio slender wing at high angle of attack is conducted. For steady asymmetric vortical flow, study shows that the side force on after cylinder induced by asymmetric nose vortices is significantly weakened, because of boundary layer separation on after body is blocked by section of wingbody combination, and also shows that the outplane force on wingbody combination with "○"configuration is larger than those on body alone. In general wingbody combinations, for examples, "+"or "×"configuration, the outplane force consists of contributions of forebody and wing, the outplane force of general combination would be larger than those on "○"wingbody combination, if the side force directions both of forebody and wing are the same.更多还原