Unsteady Flow Simulation of a High-Lift configuration using a Lattice Boltzmann Approach
Unsteady Flow Simulation of a High-Lift configuration using a Lattice Boltzmann Approach
复制标题
使用格子玻尔兹曼方法对高升力配置进行非定常流动仿真
DOI：
10.2514/6.2011-869
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
S. Noelting
中科院分区：
文献类型：
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作者：
E. Fares;S. Noelting
采用格子-Boltzmann方法(LBM)结合甚大涡模拟(VLES)湍流模型，对AIAA首届高扬程预报研讨会所用的高扬程布局进行了非定常数值模拟。简要介绍了数值方法和网格划分技术。首先对研讨会中规定的一些选定的攻角和构型进行模拟，并与现有的实验结果进行比较。研究内容包括分辨率研究、附加几何细节的影响以及层流对数值模拟中湍流转变的影响。在第二步中，将模拟域扩展到包括风洞墙，以努力预测风洞的阻塞和安装效果，并与未校正的力和力矩测量进行比较。
A Lattice-Boltzmann Method (LBM) based approach combined with a very large eddy simulation (VLES) turbulence modeling is used for the unsteady simulation of the flow field around the high-lift configuration used in the first AIAA high-lift prediction workshop. The numerical approach as well as the meshing technique is briefly described. The simulations are conducted first for some selected angle of attacks and configurations prescribed within the workshop and compared to the available experimental results. Several investigations are presented including a resolution study, the influence of added geometrical details and the laminar to turbulence transition in the simulation. In a second step the simulation domain is extended to include the wind tunnel walls in an effort to predict the blockage and installation effects of the wind tunnel and compare with the uncorrected force and moment measurements.