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    题名: LES Simulation of Hemispherical Dome’s Aerodynamic Characteristics in Smooth and Turbulence Boundary Layer Flows
    作者: Chung-Lin Fu;Chii-Ming Cheng;Yuan-Lung Lo;De-Qian Cheng
    关键词: LES;Hemispherical dome;Reynolds number;Separation point
    日期: 2015-09
    上传时间: 2016-01-06 11:06:11 (UTC+8)
    出版者: Elsevier BV
    摘要: Large Eddy Simulation (LES) technique has been adopted in this research to investigate the aerodynamic characteristics of a hemispherical dome immersed in smooth flow and boundary layer flow at a Reynolds number around 2E+06. Accuracy of the numerical simulation result was validated in comparison with previous wind tunnel experiment performed by Cheng and Fu (2010). Results showed that the numerical simulation result agrees fairly well with the experimental one in mean pressure distributions both in smooth and turbulent flows. Regarding the RMS pressure coefficients, the agreement is fairly good for the smooth flow. However, it is rather poor for the turbulent boundary layer. Furthermore, the numerical simulation offers an insight into the characteristics of the flow near the separation point and provides comprehensive understanding for the location of the separation.
    關聯: Journal of Wind Engineering and Industrial Aerodynamics 144, pp.53–61
    DOI: 10.1016/j.jweia.2015.05.010
    显示于类别:[土木工程學系暨研究所] 期刊論文

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