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A combined criteria-based method for hypersonic three-dimensional boundary layer transition prediction

机译：基于组合准则的高超声速三维边界层过渡预测方法

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摘要

AbstractIn this paper, a new method for predicting hypersonic three-dimensional (3D) boundary layer transition is developed. It is based on theReθ/Mecriterion for streamwise instability and on theRecf,newcriterion for crossflow instability. An intermittency function is also formulated and applied to combine laminar and turbulent flows. Additionally, a computational grid pretreating method, compatible with modern computational fluid dynamics (CFD) techniques based on parallel execution is adopted in order to obtain the boundary layer parameters. Four criteria are compared to define the boundary layer edge. A HIFiRE-5 elliptic cone at different Reynolds numbers is adopted to validate the performance of the criteria-based transition model and the effectiveness of the four criteria for boundary layer edge definition. The results show that the boundary layer edge of complex hypersonic 3D flows could be obtained properly with the computational grid pretreating method and the combination ofh0/h0,∞=0.995and(du/dH)/(du/dH)w=0.1criteria. Moreover, the computedReθ/MeandRecf,newdistributions in the region between the leading edge and the centerline are similar to the N-factor for streamwise and crossflow instabilities from linear parabolized stability equation (PSE) methods. The shape and trend of the transition onsets predicted by the criteria-based transition model between the centerline and leading edge of HIFiRE-5 agree well with the experiment. However, as for the transition on the centerline, which is dominated by the inflection point in streamwise velocity profiles, using the criteria-based transition model related to boundary layer thickness would predict the transition onset prematurely.
机译： 摘要 本文提出了一种预测高超音速三维（3D）边界层过渡的新方法。它基于 Re θ / M < / mml：mrow> e 准则，用于确定流向不稳定性和在 Re cf ， 新 关于错流不稳定性的准则。还制定了间断函数并将其应用于组合层流和湍流。另外，为了获得边界层参数，采用了与基于并行执行的现代计算流体动力学（CFD）技术兼容的计算网格预处理方法。比较四个标准以定义边界层边缘。采用不同雷诺数的HIFiRE-5椭圆锥来验证基于标准的过渡模型的性能以及边界层边缘定义的四个标准的有效性。结果表明，通过计算网格预处理方法和 h 0 / < mml：mrow> h 0 ， ∞ = 0.995 < / mml：math>和 < mml：mo Stretchy =“ false”>（ d u / d H ） / （ d < mml：mi> u / d H ） w = 0.1 条件。此外，计算出的 Re θ / M e 和 Re cf ， 新 前缘和中心线之间的区域中的分布类似于流向的N因子线性抛物稳定方程（PSE）方法产生的横流不稳定性。通过基于标准的HIFiRE-5中心线和前沿之间的过渡模型预测的过渡开始的形状和趋势与实验非常吻合。但是，对于中心线的过渡（由流速度曲线中的拐点控制），使用与边界层厚度相关的基于准则的过渡模型会过早地预测过渡开始。 < / ce：abstract-sec>

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  • 来源
    《Aerospace science and technology》 |2018年第2期|105-117|共13页
  • 作者

    Ling Zhou; Rui Zhao; Renfu Li;

  • 作者单位

    School of Energy and Power Engineering, Huazhong University of Science & Technology;

    School of Aerospace Engineering, Beijing Institute of Technology;

    School of Aerospace Engineering, Huazhong University of Science & Technology;

  • 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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