五阶HWCNS格式在低速复杂流场中的应用

采用五阶精度显式HWCNS格式求解雷诺平均NS方程，利用多块对接结构网格技术，对30P-30N多段翼型进行网格收敛性研究，在不考虑转捩的情况下采用SA一方程湍流模型研究HWCNS格式与二阶精度MUSCL格式对该翼型压力分布和典型站位速度型的影响，并与实验结果进行对比分析。采用HWCNS格式和SA一方程湍流模型模拟梯形翼高升力构型低速复杂流场，通过对总体气动特性和压力分布的分析，探讨五阶精度显式HWCNS格式在低速复杂外形流动中的应用能力。

Application of fifth-order accurate HWCNS for low-speed complex flow field

Fifth-order accurate explicit HWCNS is used to solve Reynolds Averaged Navier-Stokes equations, by generating multi-block structured grids, grid convergence study of 30P-30N is performed, the effects of HWCNS and second-order accurate MUSCL on pressure distribution and velocity profiles at typical stations are studied without regard to transition using SA trubulence model, furthermore numerical and experimental results are compared and analysed. The trapezoidal wing is numerically simulated using HWCNS and SA turbulence model, by analysing aerodynamic characters and pressure distribution, the performance of application of HWCNS for low-speed complex cofiguration flows is discussed.