The University of Tokyo
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA) (ISAS)
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA) (ISAS)
47th Fluid Dynamics Conference /the 33rd Aerospace Numerical Simulation Symposium (July 2-3, 2015. Institute of Industrial Science , the University of Tokyo), Meguro-ku, Tokyo, Japan
抄録（英）
The large-eddy simulation (LES) of separation control using a synthetic jet is conducted around an NACA0015 airfoil of the chord Reynolds number 63,000. The linear stability analysis is together conducted to detect the unstable mode of the wall-normal fluctuation in the separation controlled flows. In the highly controlled cases, the harmonic modes of the input frequency directly enhances the KH instability modes which linearly develop in the separated shear layer. The other modes of both the higher and lower frequencies grow following the most unstable modes (the nonlinear growth regime), which effectively promotes the turbulent transition and the generation of large vortex structures.
内容記述
形態: カラー図版あり
内容記述（英）
Physical characteristics: Original contains color illustrations
翼周り剥離流れ制御におけるシンセティックジェット駆動周波数と流れの不安定周波数の比較
AA1630005010.pdf
(820.85KB)
