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中国科学院大学学报 ›› 2000, Vol. 17 ›› Issue (1): 14-19.

• 论文 • 上一篇    下一篇

高超声速复杂流动中湍流模式的研究

张红杰, 马晖扬, 童秉纲   

  1. 中国科学技术大学研究生院, 北京, 100039
  • 收稿日期:2000-11-04 发布日期:2000-01-15
  • 作者简介:张红杰,男,1975年12月生,硕士研究生.
  • 基金资助:

    国家自然科学基金资助项目(5006043)

Turbulence Model for Hypersonic Complex Flows

Zhang Hong-jie, Ma Hui-yang, Tong Bing-gang   

  1. Graduate School at Beijing University of Science and Techunology of China, Beijing 100039
  • Received:2000-11-04 Published:2000-01-15

摘要:

研究了标准k-ε模式,双尺度湍流模式,并对其在壁面附近作出长度尺度修正在此基础上,选择了几个基准流动 :二维可压缩拐角、锥柱裙组合体绕流和斜激波⁄平板湍流边界层干扰,进行数值计算。通过数值计算和实验结果的比较,发现修正湍流模式对流动分离、摩阻和热流的计算具有更好的效果。

关键词: 湍流模式, 计算流体动力学, 高超声速流动

Abstract:

k-ε model and two-scale turbulence model are studied and theirs modification are made in this paper. The models are applied to four hypersonic copmlex flows consisting of two cuses of a 2-D compression corner, an ogive-cylinder-flare flow, and an oblique shock wave/turbulent boundary-layer interaction. Computational results were compared with experimental data. It is shown that modificadons made to the model resulted in improved predictions of skin friction, surface heat transfer for separated flows.

Key words: turbulence models, CFD, hypersonic flows