U.S.-France (INRIA) Collaborative Research: Massively Parallel Computational Fluid Dynamics Computations

该奖项将支持美国和法国科学家在计算流体动力学的大规模并行处理和大规模耦合计算流体和固体动力学问题方面的合作研究。美国调查人员是科罗拉多大学博尔德分校的Charbel Farhat博士和Oliver McBryan博士，以及华盛顿特区海军研究实验室的Elaine Oren博士和Jay Boris博士。法国参与者是位于法国索菲亚-安提波利斯的法国国家计算机科学与自动化研究所（INRIA）的Alain Dervieux博士和Bernard Larrouturou博士。拟开展的研究包括五个部分：非结构化网格上的定常和非定常流动计算、结构化网格上的直接和大涡模拟、多网格方法在流动问题中的应用以及瞬态完全耦合的流体/结构模拟。应用问题，高马赫数实气流动，跨声速燃烧，跨声速燃烧，爆轰物理，全构型飞机结构的湍流和气动弹性分析，选择它们是因为它们在技术上的重要性，并且为了向工程界展示新兴的大规模并行技术在解决目前串行超级计算机无法解决的问题方面的潜力。科罗拉多大学的研究团队将带来他们广泛的“实践”经验，使用新颖和内在并行的数值算法进行大规模并行有限元/差分计算。该团队还将负责项目的协调和流体与结构工程软件的集成。INRIA的研究小组将在非结构化网格的稳定流动有限元计算方面提供专业知识。NRL团队将利用非结构化网格带来他们在非定常流并行计算方面的进步，以及他们在大规模并行计算方面的专业知识。

This award will support collaborative research between US and French scientists on the topic of massively parallel processing of computational fluid dynamics and large-scale coupled computational fluid and solid dynamics problems. The US investigators are Dr. Charbel Farhat and Dr. Oliver McBryan, University of Colorado at Boulder, and Dr. Elaine Oren and Dr. Jay Boris, Naval Research Laboratory, Washington, DC. The French participants are Dr. Alain Dervieux and Dr. Bernard Larrouturou, French National Institute for Computer Science and Automation (INRIA), Sophia-Antipolis, France. The proposed research includes five components: steady and unsteady flow computations on unstructured meshes, direct and large-eddy simulations on structured grids, multigrid methods applied to flow problems, and transient fully coupled fluid/structure simulations. The application problems, real-gas flows at high Mach number, transonic combustion, transonic combustion, detonation physics, turbulent flows and aeroeleastic analysis of full configura- tion aircraft structures, are chosen because of their technological importance and in order to demonstrate to the engineering community the potential of the emerging massively parallel technology in solving problems that are presently beyond the reach of sequential supercomputers. The research team at Colorado will bring their extensive "hands on" experience with massively parallel finite element/difference computations using novel adn intrinsi- cally parallel numerical algorithms. This team will also be responsible for the coordination of the project and the integration of the fluid and structure engineering software. The research group at INRIA will contribute expertise in steady flow finite element computations with unstructured meshes. The NRL team will bring their advances in unsteady flow parallel computations using unstructured grids, as well as their expertise in massively parallel computing.