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http://dx.doi.org/10.5139/JKSAS.2012.40.6.475

Numerical Study of the Aerodynamic Characteristics of an Airfoil with Thickness Uncertainty for a Wind Tunnel Testing  

Yi, Tae-Hyeong (한국항공우주연구원 항공기술실)
Kwon, Ki-Jung (한국항공우주연구원 항공기술실)
Kim, Keun-Taek (한국항공우주연구원 항공기술실)
Ahn, Seok-Min (한국항공우주연구원 항공기술실)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.40, no.6, 2012 , pp. 475-484 More about this Journal
Abstract
Numerical investigation is performed to understand the effects of thickness uncertainty of a supporting airfoil due to manufacturing processes on the aerodynamic characteristics of an airfoil used for measuring data in a wind tunnel testing. This is done by comparing the coefficients of lift, drag and moment of the airfoils. In this work, the airfoil model consists of three parts, one located in the center for measuring and two outer parts used for supporting. The study is carried out with a NACA64-418 airfoil and the turbulence model of Transition SST. It is found that the effect of thickness uncertainty of the airfoils used for supporting is not significant to the performance of the test airfoil at various angles of attack and Reynolds numbers.
Keywords
Airfoil; Wind Tunnel; Manufacturing Tolerance; Laminar-to-Turbulence Transition;
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