Abstract
The objective of the current study is the application of a zonal RANS/LES approach to predict the flow field around a HGR-01 airfoil at high angle of attack. In this case a laminar separation bubble with subsequent transition to turbulence and a small trailing edge separation occur. This approach uses an LES zone at the leading edge to capture the laminar separation bubble and a second LES zone at the trailing edge, enclosing the trailing edge recirculation region. The flow in the rest of the computation domain is simulated with a RANS method. Results are presented for a full LES in comparison to experimental data. Good agreement is obtained for the pressure distribution and the location and size of the laminar separation region. First results for the zonal methods show a smooth transition between the RANS and the LES zones and comparable pressure distributions.
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Keywords
- Turbulent Kinetic Energy
- Large Eddy Simulation
- Separation Bubble
- Spanwise Direction
- Reynolds Shear Stress
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Geurts, K.J., Meinke, M., Schröder, W. (2013). A Zonal RANS/LES Method for the Flow Around an Airfoil at High Angle of Attack. In: Dillmann, A., Heller, G., Kreplin, HP., Nitsche, W., Peltzer, I. (eds) New Results in Numerical and Experimental Fluid Mechanics VIII. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 121. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-35680-3_55
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DOI: https://doi.org/10.1007/978-3-642-35680-3_55
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-35679-7
Online ISBN: 978-3-642-35680-3
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