The IGV in this study is an uncambered airfoil, designed to use the Coanda effect to achieve flow vectoring. For this internal flow problem, two isotropic turbulence models are compared to an anisotropic model. Good trend comparison was seen for turning angle and pressure loss performance characteristics given a nominal fixed trailing edge geometry. However, as the trailing edge geometry is modified in an attempt to increase turning, discrepancies become evident, possibly due to the effects of streamline curvature. As the trailing edge radius decreases, significant variations in the jet separation location are predicted, which translates directly into flow turning predictions. Further, one turbulence model was examined using a second CFD code to ensure software independence of the solutions.
2D CFD Studies Using Different Turbulence Models of a Circulation Control Inlet Guide Vane
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Hill, HE, Ng, WF, Vlachos, PP, Guillot, SA, & Bailie, ST. "2D CFD Studies Using Different Turbulence Models of a Circulation Control Inlet Guide Vane." Proceedings of the ASME/JSME 2007 5th Joint Fluids Engineering Conference. Volume 1: Symposia, Parts A and B. San Diego, California, USA. July 30–August 2, 2007. pp. 1535-1543. ASME. https://doi.org/10.1115/FEDSM2007-37294
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