Dynamic stall analysis using harmonic balance and correlation-based γ– Reθt¯ transition models for wind turbine applications†
Dynamic stall analysis using harmonic balance and correlation-based γ– Reθt¯ transition models for wind turbine applications†
复制标题
使用谐波平衡和基于相关性的 γ– Reθt 转变模型进行动态失速分析，适用于风力涡轮机应用†
作者：
Jason C. Howison;K. Ekici
本文用谐波平衡法研究了S809翼型的动态失速振荡。这个问题的周期性行为使它非常适合谐波平衡法，它能够建模非定常空气动力学大大降低计算成本相比，时间精确的非定常流求解器。本文采用基于上下对称Gauss-Seidel格式和Roe通量的有限体积法求解雷诺平均Navier-Stokes方程。湍流粘性系数采用单方程Spalart-Allmaras湍流模型计算。此外，层流湍流过渡建模使用的相关为基础的方法最初开发的Langtry和Menter。与S809翼型定常流的实验数据的比较突出了转捩模型的必要性，以准确地预测静态失速的开始。对于非定常情况，过渡模型提供了改进的协议与实验数据，预测动态失速时，完全湍流模型不能。版权所有© 2014约翰威利父子有限公司.
In this paper, we use the harmonic balance method to study an oscillating S809 airfoil in dynamic stall. The periodic behavior of this problem makes it well suited for the harmonic balance method, which is able to model unsteady aerodynamics at greatly reduced computational costs when compared with time-accurate unsteady-flow solvers. A finite-volume technique based on the lower–upper symmetric Gauss–Seidel scheme with Roe fluxes is used to solve the Reynolds-averaged Navier–Stokes equations. The turbulent viscosity is computed with the one-equation Spalart–Allmaras turbulence model. In addition, the laminar–turbulent transition is modeled using a correlation-based approach originally developed by Langtry and Menter. Comparisons with experimental data for steady flows with the S809 airfoil highlight the necessity of the transition model to accurately predict the onset of static stall. For unsteady cases, the transition model provides improved agreement with experimental data, predicting dynamic stall when the fully turbulent model cannot. Copyright © 2014 John Wiley & Sons, Ltd.
基于谐波平衡可压缩纳维-斯托克斯方程低速预处理的水平轴风力机翼型非定常流分析
DOI：
10.1115/gt2011-45303
发表时间：
2011
期刊：
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影响因子：
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作者：
Campobasso M
通讯作者：
Campobasso M