国家数值风洞(NNW)工程在高超声速中的应用研究进展

随着CFD技术的快速发展，CFD数值模拟软件在飞行器研制中得到广泛应用，并已渗透航空航天等诸多领域的各个阶段，发挥着越来越重要的作用。国家数值风洞（NNW）工程坚持边建边用的原则，通过集成结构力学、飞行力学、工程热力学、声学、光学、电磁学、多相流体力学等学科软件，在航空航天、交通运输、能源动力、环保减灾等领域发挥了积极作用。总结了NNW软件在高超声速飞行器边界层转捩、湍流、高精度方法等领域的应用成果以及在解决复杂流动干扰、动态稳定性和多学科耦合问题上的最新进展。通过案例展示，使相关从业人员了解NNW软件的功能、特点，促进系列软件在全国的推广和应用。

Progress on application of National Numerical Windtunnel Project for hypersonic

With the fast development of CFD techniques in recent years, CFD numerical simulation software has been widely used in the development of aircrafts, and plays an increasingly important role in most stages of aerospace and other fields. The National Numerical Windtunnel (NNW) Project adheres to the principle of "using while building". By integrating the software of structural mechanics, flight mechanics, engineering thermodynamics, acoustics, optics, electromagnetics, multiphase fluid mechanics and other disciplines, the project is playing an active role in aerospace, transportation, energy and power, environmental protection and disaster mitigation, and other disciplines. This paper summarizes the achievements of using the NNW software for hypersonic boundary layer transition, turbulence and high-order schemes. Development of applicaion of the NNW software for the problems of complex flow interaction, dynamic stability and multidisciplinary coupling simulation is also discussed. Cases are displayed to demonstrate the functions and characteristics of NNW software, so as to boost the spread and application of the software nationwide.