Abstract
This paper presents a numerical study of vorticity generation around a 2D airfoil during the starting and stopping phases of motion. The study focuses on a single NACA0012 airfoil of unit chord at 4° angle of attack where the two-dimensional Navier-Stokes equations are solved using a spectral element DNS code. Peaks in the boundary vorticity flux on the trailing edge surface support recent findings about the establishment of the Kutta condition. The peaks in lift force during the starting and stopping phases appear to be well-explained by thin airfoil theory for non-uniform motion while the peaks in the drag force appear well-explained by vortex impulse and added mass.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 21st Australasian Fluid Mechanics Conference |
| Editors | Timothy C.W. Lau, Richard M. Kelso |
| Publisher | Australasian Fluid Mechanics Society |
| ISBN (Electronic) | 9780646597843 |
| Publication status | Published - 2018 |
| Event | Australasian Fluid Mechanics Conference 2018 - Adelaide Convention Centre, Adelaide, Australia Duration: 10 Dec 2018 → 13 Dec 2018 Conference number: 21st https://aomevents.eventsair.com/QuickEventWebsitePortal/21st-australasian-fluid-mechanics-conference/afmc2018 |
Conference
| Conference | Australasian Fluid Mechanics Conference 2018 |
|---|---|
| Abbreviated title | AFMC 2018 |
| Country | Australia |
| City | Adelaide |
| Period | 10/12/18 → 13/12/18 |
| Internet address |
Cite this
Wang, A. R., & Blackburn, H. M. (2018). Examination of the details of 2D vorticity generation around the airfoil during starting and stopping phases. In T. C. W. Lau, & R. M. Kelso (Eds.), Proceedings of the 21st Australasian Fluid Mechanics Conference Australasian Fluid Mechanics Society.