Article | Proceedings of the 58th Conference on Simulation and Modelling (SIMS 58) Reykjavik, Iceland, September 25th ‚Äď 27th, 2017 | Simulation of Starting and Stopping Vortices of an Airfoil
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Title:
Simulation of Starting and Stopping Vortices of an Airfoil
Author:
Roberto Agromayor: Department of Energy and Process Engineering, Norwegian University of Science and Technology, Norway Jairo R√ļa: Department of Energy and Process Engineering, Norwegian University of Science and Technology, Norway Reidar Kristoffersen: Department of Energy and Process Engineering, Norwegian University of Science and Technology, Norway
DOI:
10.3384/ecp1713866
Download:
Full text (pdf)
Year:
2017
Conference:
Proceedings of the 58th Conference on Simulation and Modelling (SIMS 58) Reykjavik, Iceland, September 25th ‚Äď 27th, 2017
Issue:
138
Article no.:
009
Pages:
66-75
No. of pages:
10
Publication type:
Abstract and Fulltext
Published:
2017-09-27
ISBN:
978-91-7685-417-4
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press, Linköpings universitet


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When the flow around a streamlined body is accelerated or decelerated,starting and stopping vortices are shed from the trailing edge of the body, respectively. In this work, the transient flow around a NACA4612 airoil profile was analyzed and simulated at Re = 1000 and a = 16 paying especial attention to the starting and stopping vortices shed from the airfoil. A detailed review of the underliying physics of the generation of lift was presented with focus on the importance of viscosity as the essential factor for the generation of lift. The incompressible Navier-Stokes equations with constant density and viscosity in an inertial frame of reference were solved with OpenFOAM using a linear upwind finite volume method (FVM) for the space discretization and the implicit Euler method for the time integration. The results were verified using the Kelvin circulation theorem. Three flow animations were prepared with the simulation results and compared with the historical flow visualizations from Prandtl.

Keywords: Kelvin circulation theorem, Stokes theorem, CFD, PIMPLE algorithm, C-mesh, SnappyHexMesh, unsteady, non-inertial, NACA profile, aerofoil.

Proceedings of the 58th Conference on Simulation and Modelling (SIMS 58) Reykjavik, Iceland, September 25th ‚Äď 27th, 2017

Author:
Roberto Agromayor, Jairo R√ļa, Reidar Kristoffersen
Title:
Simulation of Starting and Stopping Vortices of an Airfoil
DOI:
http://dx.doi.org/10.3384/ecp1713866
References:
No references available

Proceedings of the 58th Conference on Simulation and Modelling (SIMS 58) Reykjavik, Iceland, September 25th ‚Äď 27th, 2017

Author:
Roberto Agromayor, Jairo R√ļa, Reidar Kristoffersen
Title:
Simulation of Starting and Stopping Vortices of an Airfoil
DOI:
http://dx.doi.org/10.3384/ecp1713866
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Citations:
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Last updated: 2017-02-21