国家数值风洞(NNW)工程中的CFD基础科学问题研究进展

计算流体力学（CFD）基础理论方面的持续创新对数值模拟软件的功能拓展及推广应用具有十分重要的意义，国家数值风洞（NNW）工程在CFD相关的若干关键基础科学问题上开展了研究。简要综述了国内各参研团队近3年的研究进展，NNW工程在转捩与湍流模型及计算方法、多相多介质计算模型与方法、多物理场耦合计算模型与方法、高精度数值计算方法等方面形成了一系列阶段性的研究成果，建立了多种原创算法与模型。这些算法与模型中具有较高成熟度的将被集成至NNW工程的相关软件，并面向全国发布。

Research progress on fundamental CFD issues in National Numerical Windtunnel Project

Continuous innovations in the fundamental theories of Computational Fluid Dynamics (CFD) are of great importance for capability expansion and popularization of the numerical simulation software. In the National Numerical Windtunnel (NNW) Project, several key fundamental issues in CFD are studied. Through endeavors of the research teams during the past three years, the project has accomplished a series of meaningful achievements, and developed many original methods and models for transition and turbulence computation, multiphase and multi-medium flow computation, multi-physics field computation, and high-accuracy computation. This paper provides brief reviews on related research progress. The methods and models with high-maturity will be integrated into the software in the NNW Project and released to the whole country.