S0502-3-5 急激迎角変化三次元翼まわりの渦の挙動([S0502-3]噴流,後流および剥離流れ現象の解明と制御(3))

概要

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In recent years, considerable research efforts in a number of institutions have been devoted to advancing understanding of the unsteady effect, because the effect of unsteady fluid forces must be important to the flight mechanism. In the present study, the unsteady fluid forces and vortical flow field were measured during upward movement by changing the angle of attack impulsively. In order to better understand the relationship between unsteady fluid forces and vortex behavior, a flow visualization technique was also used to examine the flow field near the airfoil in a wind tunnel test. The unsteady fluid forces were affected by the vortex behavior on the upper surface of the airfoil during upward movements, and the vortex deforms in the spanwise direction due to the velocity induced by the airfoil movements for the discoid airfoil.
一般社団法人日本機械学会の論文
2010-09-04