Abstract
The vortex flow and aerodynamic load characteristics of a sweep delta wing with the leading edge extension in sideslip condition is investigated experimentally. The freestream velocity is 40 m/sec, which corresponds to a Reynolds number per meter of 1.76X based on the wing root chord. The angles of attack range from to 28{^{\circ}}, and the sideslip angles treated are 0{^{\circ}}, -10{^{\circ}}, 20{^{\circ}}. The LEX vortex of the leeward side. The LEX and wing vortics coalesce to to become a concentrated strong vortex or to break down at down at downstream position. Due to the interation of the LEX and wing vortices, a high suction pressure is maintained on the windward wing surface, and a low suction pressure is formed on the leeward wing surface. ﾖ⨀
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