Abstract
Numerical investigations of helicopter blade-vortex mechanism of interaction are performed using large eddy simulation (LES). The simulations were performed for a Reynolds number, Re=1.3x10^6, based on the chord, c, of the airfoil (NACA0012). Computations are carried out for two different types of blade-vortex interactions, concerning single and respectively two vortices blade interaction. It was observed that for single vortex-blade interaction, the blade-vortex interaction becomes less significant with the increase of vertical miss distance. Larger amplitudes of aerodynamic coefficients were observed for the case of two vortices-blade interaction when compared with the single vortex blade interactions.
| Original language | American English |
|---|---|
| Title of host publication | Proceedings of the Aerospace Sciences Meeting |
| DOIs | |
| State | Published - Jan 7 2013 |
Disciplines
- Mechanical Engineering
Keywords
- Blade-vortex
- Critical aerodynamic aspects
- Rotorcraft
- Street interactions
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