Grégoire Casalis , Cédric Gouttenoire , Bruno Troff
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引用次数: 3
Abstract
An investigation of the generation of Tollmien-Schlichting waves has been carried out with the direct numerical simulation PEGASE code developed at ONERA. The latter was allowed to visualise these waves in a two-dimensional incompressible flow around a roughness element placed on a flat plate, the incoming flow having the form: U∞ = U0(1ɛ cos ωt). Quantitative results on the influence of ɛ, and of the dimensions h and l of the rectangular hump on these waves are obtained from a parametric study. These results show good agreement with previous experimental and theoretical studies.
利用ONERA开发的直接数值模拟PEGASE代码对托尔曼-施lichting波的产生进行了研究。后者被允许在平面上放置的粗糙元件周围的二维不可压缩流中可视化这些波，入射流的形式为:U∞= U0(1 μ cos ωt)。通过参数化研究，定量分析了矩形驼峰的尺寸h和l对这些波的影响。这些结果与以往的实验和理论研究结果一致。
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