The impact of unilateral vibrations on aerodynamic characteristics of airfoils in transonic flow

All-Russian conference on Nonlinear Waves: Theory and New Applications

Zamuraev, V.^1 ; Kalinina, A.^1

Khristianovich Institute of Theoretical and Applied Mechanics of SB RAS, Russia^1

关键词: Aerodynamic characteristics;    Forced vibration;    Incoming flows;    Lift force;    Maximum velocity;    Shock-wave structures;    Surface elements;    Wave drags;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/722/1/012018/pdf
DOI  :  10.1088/1742-6596/722/1/012018

来源: IOP

【 摘 要 】

The work is devoted to the mathematical modeling of the influence of forced vibrations of a surface element on one side of the airfoil on the shock-wave structure of transonic flow around. The influence of parameters of oscillations on the airfoil wave drag and the lift force were qualitatively and quantitatively investigated for constant maximum velocity amplitude, which is close in magnitude to the sound velocity in the incoming flow, and for a wide range of frequencies. The arising of additional lift force is shown.