Three dimensionality and Instabilities of Leading-Edge Vortices
Lead Research Organisation:
Imperial College London
Department Name: Aeronautics
Abstract
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Publications
Onur Sun
(2022)
Leading-Edge Vortex Dynamics on Plunging Airfoils and Wings
in Journal of Fluid Mechanics
Son O
(2022)
Leading-edge vortex dynamics on plunging airfoils and wings
in Journal of Fluid Mechanics
Gao A
(2023)
Three-dimensional transition and force characteristics of low-Reynolds-number flows past a plunging airfoil
in Journal of Fluid Mechanics
| Description | We have investigated the fundamental flow dynamics of how the leading edge vortex on a plunging wing is formed and evolves for different oscillatory frequencies of the plunging wing. We have in particular established how the vortex is formed near the tip of the wing which helps us understand the how this region can generate lift under plunigng conditions. This type of dynmaics information is useful in understanding animal flow dynaimcs with potential application to unanned aircarft and wind turbines. |
| Exploitation Route | We have published this work in the academic literature and reported it at international conferences and seminars |
| Sectors | Aerospace, Defence and Marine,Energy |
| Description | We have discussed the results with our industrial collaborators at McLaren Racing who are interested in adopting the software. |
| First Year Of Impact | 2001 |
| Sector | Transport |
| Description | McLaren Racing |
| Organisation | McLaren Racing |
| Country | United Kingdom |
| Sector | Private |
| PI Contribution | We have transferred fundamental ideas behind vortex stability and identification to their design practice. More recently we are been applying computational modelling tools developed in an academic setting to example flow problems of direct interest to McLaren. |
| Collaborator Contribution | Data and motivation on how to focus our research direction |
| Impact | . |
| Start Year | 2007 |
| Title | Nektar++ v5.0.1 |
| Description | A tensor product based finite element package designed to allow one to construct efficient classical low polynomial order h-type solvers (where h is the size of the finite element) as well as higher p-order piecewise polynomial order solvers. |
| Type Of Technology | Software |
| Year Produced | 2021 |
| Open Source License? | Yes |
| Impact | The latest version of Nektar++, v5.0.1, was released on the 21st January 2021. It can be downloaded from the downloads page. |
| Description | "Numerical simulation and experiment of the three-dimensional leading-edge vortex generated by a plunging wing" at The 13th International ERCOFTAC symposium on Engineering, Turbulence, Modelling and Measurements (ETMM13). |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Postgraduate students |
| Results and Impact | Gao, A. K., Cantwell, C. D., Sherwin, S. J., Son, O., Wang, Z., & Gursul, I. (2021, September). Numerical simulation and experiment of the three-dimensional leading-edge vortex generated by a plunging wing. In The 13th International ERCOFTAC symposium on Engineering, Turbulence, Modelling and Measurements (ETMM13). |
| Year(s) Of Engagement Activity | 2021 |
| URL | https://etmm.ercoftac.org/etmm/past-etmm-conference/etmm-13-in-rhodes-20/ |
| Description | Three-dimensional instabilities of vortices shed from a plunging wing: Computations. In APS Division of Fluid Dynamics Meeting (2020) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Postgraduate students |
| Results and Impact | Gao, A. K., Sherwin, S. J., & Cantwell, C. D. (2020). Three-dimensional instabilities of vortices shed from a plunging wing: Computations. In APS Division of Fluid Dynamics Meeting Abstracts (pp. P19-005). |
| Year(s) Of Engagement Activity | 2020 |