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钱宇,蒋皓. 基于k——ω湍流模型的翼尖涡演化过程数值模拟[J]. 科学技术与工程, 2020, 20(35): 14708-14713.
QIAN Yu,JIANG Hao.Numerical Analysis of Evolution Process of Vortex Wake Based on k-omega Turbulent Model[J].Science Technology and Engineering,2020,20(35):14708-14713.
基于k——ω湍流模型的翼尖涡演化过程数值模拟
Numerical Analysis of Evolution Process of Vortex Wake Based on k-omega Turbulent Model
投稿时间:2019-12-11  修订日期:2020-08-29
DOI:
中文关键词:  翼尖涡  结构化网格  SST k-omega湍流模型  连续演化  数值计算
英文关键词:wingtip vortex  structure grid  SST k-omega turbulence model  continuous evolution  numerical calculation
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
     
作者单位
钱宇 中国民用航空飞行学院
蒋皓 中国民用航空飞行学院
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中文摘要:
      为深入研究近场翼尖涡的演化过程,同时给远场尾流的计算提供初始参考,建立了飞机着陆状态仿真模型,采用结构化网格对模型进行网格划分,利用转捩修正的SST k-omega湍流模型,通过求解不可压缩的N-S方程对生成的网格进行数值计算,得到了着陆状态下机翼及近翼流场翼尖涡的连续演化过程。研究结果表明:机翼表面形成的两次共转融合涡与次级尾迹涡共同作用于近翼流场,并于0.5L处形成稳定的翼尖涡;在整个演化过程中,翼尖涡受环境因素影响较大,并伴随着较大的能量转换。
英文摘要:
      In order to study the evolution process of wingtip vortex under landing condition and provide an initial reference for the study of wingtip vortex at far-field, a simulate model of airplane on landing condition was built and a structured grid was used to generate the airplane grid. The evolution process of wingtip vortex on the airfoil and in near-wing flow field was obtained by solving incompressible N-S equation and transition modified SST k-omega turbulence model.The results show that two co-rotating fused vortices and secondary wake vortex are formed on the wing surface and act together to a stable tip vortices at 0.5L on the near-wing flow field. Meanwhile, the development of wingtip vortex at the whole evolution process is not only affected by environmental factors, but also accompanied by a large energy conversion.
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