Open AccessUnsteady numerical simulation of flap vibration for 30P30N three-element airfoil
Author(s) -
Li Ding,
Xu Zhou
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1300/1/012084
Subject(s) - airfoil , aerodynamic center , pitching moment , lift coefficient , lift (data mining) , vibration , mechanics , hysteresis , structural engineering , acoustics , physics , angle of attack , engineering , reynolds number , aerodynamics , computer science , turbulence , quantum mechanics , data mining
The pitching motion of NACA0012 airfoil and the flap vibration of 30P30N multi-element airfoil are simulated by using commercial fluid dynamics simulation software Fluent. The influence of flap vibration on lift coefficient and pitch moment coefficient of multi-element airfoil is analyzed. The results show that the influence of flap vibration on pitching moment coefficient of multi-element airfoil is greater. With the increase of flap amplitude, the variation range of lift and moment coefficients gradually increases, while with the increase of frequency, the variation range of lift and moment coefficients gradually decreases, and the hysteresis loop gradually becomes “thin” and its shape tends to ellipse. With the increase of flap vibration frequency, the unsteady effect of flow field increases, and the hysteresis loop may change in reverse direction.