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首页> 外文期刊>Journal of Aircraft >Correlation-Based Transition Transport Modeling for Three-Dimensional Aerodynamic Configurations
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Correlation-Based Transition Transport Modeling for Three-Dimensional Aerodynamic Configurations

机译：基于相关的三维空气动力学结构过渡传输模型

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摘要

The correlation-based γ-Re_(θt) transition transport model was implemented in a hybrid Reynolds-averaged Navier-Stokes solver and validated on various test cases. The γ-Re_(θt) model predicts two-dimensional transition phenomena such as transition due to Tollmien-Schlichting instabilities and separation-induced transition. The present work includes results for the application of the γ-Re_(θt) to two three-dimensional test cases, which are the 6∶1 inclined prolate spheroid and the ONERA M6 wing. Depending on the flow conditions, the computational results are in good agreement with the experimental data. Once the given flow conditions lead to three-dimensional transition phenomena, the transition prediction with the γ-Re_(θt) model is not reliable, because the model is based on the characteristics of two-dimensional boundary layers and three-dimensional transition mechanisms are not taken into account. To close this gap, the γ-Re_(θt) model was extended by an approach that accounts for transition due to crossflow instabilities in three-dimensional boundary layers. This approach and its implementation into the original model are introduced. First results for the flow over two different infinite swept wing configurations, which are the ONERA D wing and the NLF(2)-0415 wing, are presented.
机译：基于相关性的γ-Re_（θt）过渡传输模型是在混合雷诺平均Navier-Stokes求解器中实现的，并在各种测试案例中得到了验证。 γ-Re_（θt）模型可预测二维过渡现象，例如由Tollmien-Schlichting不稳定性引起的过渡以及分离引起的过渡。目前的工作包括将γ-Re_（θt）应用于两个3D测试案例的结果，这些测试案例是6：1倾斜的扁球体和ONERA M6机翼。根据流动条件，计算结果与实验数据吻合良好。一旦给定的流动条件导致三维过渡现象，使用γ-Re_（θt）模型的过渡预测就不可靠了，因为该模型基于二维边界层的特征并且三维过渡机制是没有考虑在内。为了弥合这一差距，对γ-Re_（θt）模型进行了扩展，该方法考虑了三维边界层中错流不稳定性引起的过渡。介绍了这种方法及其在原始模型中的实现。给出了两种不同的无限扫掠机翼构型的流动的初步结果，这些构型是ONERA D机翼和NLF（2）-0415机翼。

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  • 来源
    《Journal of Aircraft》 |2013年第5期|1533-1539|共7页
  • 作者

    Cornelia Grabe; Andreas Krambein;

  • 作者单位

    DLR, German Aerospace Center, 37073 Gottingen,Germany Research Scientist, Research and Development Engineer, Institute of Aerodynamics and Flow Technology, Center for Computer Applications in Aerospace Science and Engineering, Bunsenstrass e 10, 37073;

    DLR, German Aerospace Center, 37073 Gottingen,Germany Research Scientist, Research and Development Engineer, Team Lead Performance Prediction, Institute of Aerodynamics and Flow Technology, Center for Computer Applications in Aerospace Science and Engineering, Bunsenstrass e 10, 37073;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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