Career: Research Plan: Simulation of Surface Waterflow and Transport in a Parallel Computing Environment Teaching Plan: Engineering Futures and Engineering Education

职业： 研究计划：并行计算环境中地表水流和输运的模拟 教学计划：工程未来与工程教育

• 批准号: 9623592
• 负责人: Randall Kolar
• 金额: $ 23.13万
• 依托单位: University of Oklahoma Norman Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-06-01 至 2002-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9623592&HistoricalAwards=false
• 关键词: Career; Research; Plan; Simulation; Surface

This project will investigate scalable parallel algorithms for the solution of the hydrodynamic flow and transport equations. The algorithms studies will be implemented on a variety of platforms, including clusters of workstations and massively parallel systems. The mathematical model will be based on the generalized wave continuity equation for surface elevation, the non-conservative form of the momentum equations for the velocity field, and the advection-diffusion equation for transport. Alternative numerical solution techniques, such as mixed finite element methods, will be investigated. There are five phases to the research. The first phase will use domain decomposition in conjunction with an existing hydrodynamic model to achieve parallelism. In the second phase, parallelism will be realized by exploring new algorithms specifically designed to take full advantage of parallel hardware, e.g., domain decomposition techniques. In conjunction with the second phase, a third phase will expand the codes capabilities by incorporating more physics into the governing equations. For example, baroclinic terms, which account for driving forces due to density variations, would be added so that simulations of, say fresh water/salt water interactions could be modeled. The fourth phase will rigorously test and validate the model against field data and analytical solutions. In the fifth phase, the code will be disseminated to users in academia, consulting, and industry, where it will be used to research topics, such as freshwater flow requirements in sensitive coastal ecosystems.

本项目将研究求解流体动力流动和输运方程的可伸缩并行算法。算法研究将在各种平台上进行，包括工作站集群和大规模并行系统。数学模型将基于表面高程的广义波动连续性方程，速度场动量方程的非保守形式，以及输运的平流-扩散方程。将研究其他数值求解技术，如混合有限元方法。这项研究分为五个阶段。第一阶段将使用区域分解结合现有的流体力学模型来实现并行性。在第二阶段，并行将通过探索专门设计的新算法来实现，以充分利用并行硬件，例如域分解技术。与第二阶段相结合，第三阶段将通过在控制方程中加入更多物理知识来扩展代码的能力。例如，将添加斜压项，它解释了由于密度变化而产生的驱动力，这样就可以模拟淡水/咸水的相互作用。第四阶段将对照现场数据和分析解决方案严格测试和验证模型。在第五阶段，该代码将分发给学术界、咨询界和工业界的用户，用于研究主题，如敏感沿海生态系统的淡水流动要求。