围绕翼型的流动计算使用二维RANS:在精度降低的分析

IF 0.2 Q4 PHYSICS, MULTIDISCIPLINARY

St Petersburg Polytechnic University Journal-Physics and Mathematics Pub Date : 2017-03-01 DOI:10.1016/j.spjpm.2017.03.004

Aleksey A. Matyushenko, Eugeniy V. Kotov, Andrey V. Garbaruk

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引用次数: 11

摘要

采用不同湍流模型封闭的二维Reynolds-平均Navier-Stokes方程(RANS)，对不同形状和厚度的翼型在相对高雷诺数(Re≥106)和低湍流强度(I≤0.1%)下的流动进行了数值研究。考察了风洞壁面、可压缩性和层流-湍流过渡等因素的影响。模拟数据与实验数据存在系统性差异的最可能原因是二维模拟忽略了三维效应，以及现有湍流模型的不完善。

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Calculations of flow around airfoils using two-dimensional RANS: an analysis of the reduction in accuracy

Flows around sets of airfoils with different shapes and thicknesses have been numerically investigated at relatively high Reynolds numbers (Re ≥ 10⁶) and low turbulence intensity (I ≤ 0.1%) using two-dimensional (2D) Reynolds-Averaged Navier-Stokes equations (RANS) closed by different turbulence models. The effects of a set of factors such as wind tunnel walls, the compressibility and the influence of the laminar-turbulent transition were investigated. The most likely reasons for the systematic disagreement between simulation and experimental data were established to be 3D effects ignored by 2D simulation, and imperfection of the existing turbulence models.

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来源期刊

St Petersburg Polytechnic University Journal-Physics and Mathematics PHYSICS, MULTIDISCIPLINARY-

自引率

50.00%

发文量