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Vortex Shedding And Aerodynamic Drag On Truncated Trailing Edge Airfoil
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Flight Dynamics.
2015 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The thesis work content is to evaluate the use of more advanced turbulence models available in the ANSYS CFX software for aerodynamic calculations. In particular for flows over airfoils with thick trailing edges, the turbulence modeling is challenging to traditional methods, as both thin boundary layers as well as an unsteady wake needs to be well represented. This is done by using the standard SST and then performing unsteady computations using the more advanced unsteady SAS-SST model to get the relevant CFD results. By comparing to tests performed at GKN and results from literature the improvement could be assessed in terms of modeling quality and computational cost. The results presented give a good contribution to how the modeling of unsteady wakes can be improved and used for design purposes.

Place, publisher, year, edition, pages
2015. , 28 p.
TRITA-AVE, ISSN 1651-7660 ; 2015:68
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-185029OAI: diva2:917992
Available from: 2016-04-12 Created: 2016-04-08 Last updated: 2016-04-12Bibliographically approved

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