欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
本文通过DDES（Delayed Detached Eddy Simulation）方法分别研究了绝热壁面条件和等温壁面条件下跨音高压透平导叶LS89中的基本流动现象.首先将DDES计算结果和实验数据以及文献中的LES计算结果进行了对比,证明了DDES方法计算的可靠性以及对于非定常流场精细结构的出色分辨力;而后本文研究了跨音速高压透平导叶LS89通道内的激波、尾迹、边界层等流动现象以及激波和尾迹的相互干涉,并对比了两种不同壁面传热条件对流动的影响。
英文摘要：
In this paper,the detailed flow fields of a high pressure vane have been simulated by using an in-house code with DDES method.In order to evaluate the influence of heat transfer,two different boundary conditions—adiabatic and isothermal-are highlighted.First,the DDES results are compared with experimental data and published LES results to demonstrate the accuracy and reliability of DDES code as well as its excellent resolution for unsteady small-scales structures.Then,the detailed structures of trailing edge vortex shedding,pressure wave and shock and their interactions are studied.And the effect of thermal boundary layer on flow structures are considered.
同期刊论文项目
同项目期刊论文
期刊信息
位置：