摘要
通过采用在SST湍流模型基础上发展形成的γ-Reθt转捩模型对某型可控扩散叶型进行了变冲角的数值模拟研究,并与试验结果和LES计算结果进行了比对。结果表明,SSTγ-Reθt转捩模型对叶型型面静压分布的模拟较为准确;在负冲角流动状态下对叶型的气动性能模拟比LES的结果更为贴近试验实际所得,但在正冲角流动状态下的模拟结果仍有提高的空间。
In this paper,γ-Reθt transition model developed on the SST turbulence model is used in the numerical simulation studies of a certain type of controlled diffusion airfoils about its variable incidence flow characteristic, and compared to the results of the LES and experiments. The results show that, SST γ-Reθt transition model for simulation of blade-surface static pressure distribution is more accurate; under the inflow conditions of negative incidence, the airfoil aerodynamic performance is closer to the actual experiment result than the LES simulation, but not the positive incidence inflow conditions.
出处
《汽轮机技术》
北大核心
2013年第6期434-435,439,共3页
Turbine Technology
关键词
转捩
压气机
叶型
流动特性
数值模拟
transition
compressor
airfoil
flow characteristic
numerical simulation
