Open AccessLift/Drag Characteristics of Different Ice Accretion Airfoil
Author(s) -
Yupeng Feng,
Bin Zhang,
Bin Chen
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/612/2/022008
Subject(s) - hard rime , airfoil , lift coefficient , mechanics , drag , lift to drag ratio , lift induced drag , angle of attack , wingtip vortices , lift (data mining) , aerodynamic center , vortex lift , physics , aerodynamics , drag coefficient , icing , turbulence , aerospace engineering , parasitic drag , meteorology , engineering , vortex , computer science , horseshoe vortex , reynolds number , vorticity , data mining
Aircraft icing has influence on the preliminary safety and performance evaluation of airplane. In this paper, based on different ice shapes (none, rime, mixed), the aerodynamic models of airfoil are established to analyze. Various lift/drag characteristics are obtained by numerical simulation using computational fluid dynamics (CFD) under different icing conditions. Navier-Stokes (N-S) equation and Spalart-Allmaras (S-A) turbulence model are adopted. The results show: 1. It’s obvious that lift-drag characteristics are different under various ice shapes. The lift coefficient ( α =0° ∼7°): CL none >CL rime >CL mixed , the drag coefficient ( α =0° ∼7°): CD none Vp rime >▽p mixed , which has important effect on the speed of airstream flow and the flow separation at the front zone of airfoil.