CAJ | 학술논문

采用非线性方案模化雷诺应力再分配项的二阶矩雷诺应力输运模型--SSG模型和两方程线性涡粘模型SST模型，对24°高雷诺数二维压缩拐角激波/湍流边界层相互干扰流动进行数值模拟。通过在壁面压力分布、壁面摩擦阻力系数分布、截面速度分布及分离区大小等方面与实验数据比较，综合评估了上述两种模型模拟该问题的能力。结果表明：两种湍流模型在上述各方面都取得了与实验较为一致的结果，但相比较而言，除SST模型在流动再附后对壁面摩擦阻力系数分布的模拟更接近实验值外，SSG模型结果在上述其他方面均更接近实验值。本文工作为压缩拐角激波/湍流边界层干扰这类流动数值模拟的湍流模型选择提供了参考。
채용비선성방안모화뢰낙응력재분배항적이계구뢰낙응력수운모형--SSG모형화량방정선성와점모형SST모형，대24°고뢰낙수이유압축괴각격파/단류변계층상호간우류동진행수치모의。통과재벽면압력분포、벽면마찰조력계수분포、절면속도분포급분리구대소등방면여실험수거비교，종합평고료상술량충모형모의해문제적능력。결과표명：량충단류모형재상술각방면도취득료여실험교위일치적결과，단상비교이언，제SST모형재류동재부후대벽면마찰조력계수분포적모의경접근실험치외，SSG모형결과재상술기타방면균경접근실험치。본문공작위압축괴각격파/단류변계층간우저류류동수치모의적단류모형선택제공료삼고。
Numerical investigations on shock-wave/turbulent boundary-layer interaction flow at compres-sion corner were carried out using both SSG model and SST model. The results were compared with experi-ment data, including the pressure distribution, friction coefficients on the wall and velocity profiles at differ-ent positions, in order to evaluate which model was better. The results indicate that the SSG model gives a better performance for compression corner compared with SST model, but the simulation results of friction coefficient on the wall by SST model is closer to the experiment data. This investigation is referential to choose the turbulence model simulating shock-wave/turbulent boundary layer interaction flow.