摘要
为研究大迎角状态下机翼前缘双角冰诱导产生的流动大分离问题,本文将RANS方法与WMLES方法结合起来,构造了一种分区大涡模拟(ZLES)方法,针对具有双角冰的GLC305翼型进行了数值研究,并与RANS方法、IDDES方法及风洞试验进行了对比,结果表明:ZLES方法够准确预测宏观的升力系数,压力分布、分离范围、再附位置等流场特征参数较之IDDES、RANS及文献结果与试验吻合最好,适用于双角冰诱导大分离流动的数值模拟。
In order to study the flow separation induced by glaze ice, this paper combined RANS and WMLES to construct a Zonal LES method. GLC305 airfoil with glaze ice is simulated to verify Zonal LES method, which is compared with RANS, IDDES and experiment, the results show that : Zonal LES can accurately predict the lift coefficient, pressure, separation area, reattachment position and other characteristic parameters, which are best agreement with experiment and the method is suitable for numerical simulation of such large separation flow.
作者
田增冬
Tian Zengdong(Aeronautical Computing Technique Research Institute,Xi’an Shaanxi,710065)
出处
《电子测试》
2020年第5期70-71,共2页
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