3차원 곤충 날갯짓 비행의 날개-몸통-와류 상호작용이 비정상 공력특성에 미치는 영향

Abstract

This paper investigates the unsteady aerodynamic features of wing-body-vortex interactions in three-dimensional insects' flapping motions under forward flight conditions. Detailed numerical simulations of five types of wings are carried out under various body angles to examine unsteady flow characteristics resulting from the complicated wing-body-vortex interactions, and the results are compared with those of the wing only case. Also, it is revealed that realistic geometric considerations have a considerable influence on the aerodynamic force generation in insects' flight.