文章基本信息

标题：Assessment Of Boundary Layer Flow Modeling Approaches In Computational Fluid Dynamics For Compressible External Aerodynamics Using NACA-64618 Airfoil
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作者：SHANKARA MURTHY.H.M ; MADHUKESHWARA.N ; S.KUMARAPPA 等
期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2013
卷号：2
期号：7
页码：3137
出版社：S&S Publications
摘要：In this work two dimensional CFD analysis have been carried out to predict the aerodynamic forces on the surfaceof the NACA 64618 airfoil at High Reynolds number of 9 million. The study focus on understanding the accuracy of theresults obtained with different near wall modelling techniques. Computing the near wall flow region by two distinctapproaches Viz. Direct resolution of shear stresses (Mentors SST Model) and use of wall function (K-ε Model) isassessed.CFD analysis results are compared with the wind tunnel test data available in the literatures. The reasons fordeviation between CFD analysis results and wind tunnel test data are investigated and accurate procedure for modeling thenear wall flow region is concluded.
关键词：Computational Fluid Dynamics (CFD); Airfoil; Aerodynamic Coefficients; Lift; Drag; Turbulence Models;Stalling; Boundary layer; Turbulence model; Angle of attack.