Abstract
Numerical simulations of dynamic-stall phenomena have been performed using an implicit unfactored Navier-Stokes solver and various turbulence closures, including linear and nonlinear low-Re eddy-viscosity models. The accuracy of the models has been assessed against a range of experimental data for ramping and oscillating aerofoils at subsonic and transonic conditions. The computations indicate that the nonlinear eddy-viscosity models better predict the shedding of the dynamic-stall vortex and the unsteady aerodynamic loads.
| Original language | English |
|---|---|
| Pages (from-to) | 3279-3291 |
| Number of pages | 13 |
| Journal | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
| Volume | 358 |
| Issue number | 1777 |
| DOIs | |
| Publication status | Published - 15 Dec 2000 |
Keywords
- dynamic stall
- pitching airfoils
- pitching aerofoils
- unsteady aerodynamics flows
- airfoils
- aerofoils
- Navier-Stokes equations
- subsonic conditions
- transonic conditions
- dynamic-stall vortex
- viscosity models
- turbulence closures