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《Journal of Zhengzhou University(Natural Science Edition)》 2019-01
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Inverse Design of the Transonic Natural Laminar Flow Airfoil

LI Jing;LIU Yanping;GAO Zhenghong;LIANG Tianshui;School of Mechanics and Engineering Science,Zhengzhou University;National Key Laboratory of Aerodynamic Design and Research,Northwestern Polytechnical University;  
The inverse design method was studied based on gappy proper orthogonal decomposition(POD). According to surface pressure distribution,the gappy POD reduced order model was used to reconstruct missing data of an airfoil. In the initial snapshot sampling process,ΔCST was used to get the snapshot,then the basic airfoil was replaced by the inverse designed,and the new snapshot designed by POD was added to snapshot. For laminar flow airfoil inverse design,pressure distribution snapshot were got by γ-Reθtransition model. Two different pressure distributions of the transonic NLF airfoil were proposed. Then two transonic NLF airfoils could be obtained by the inverse design method. The ability for postponing the transition of different pressure distributions under different Reynolds number and Mach numbers were studied in detail.
【Fund】: 国家自然科学基金项目(11602226);; 河南省高等学校重点科研项目(16A130001)
【CateGory Index】: V224
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