U.S.-Germany Cooperative Research: Numerical Simulation of Complex Flows Using Asymptotic-Based Schemes

美德合作研究：使用渐近方案对复杂流动进行数值模拟

• 批准号: 9725923
• 负责人: Omar Knio
• 金额: $ 1.5万
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-03-01 至 2000-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9725923&HistoricalAwards=false
• 关键词: U.S.; Germany; Cooperative; Research; Numerical

This award supports Dr. Omar Knio and a graduate student from the Johns Hopkins University in a collaboration with Rupert Klein of the Department of Safety Engineering at the Bergische University in Wuppertal. The collaboration will investigate the development of asymptotics-based schemes which enable simulation of fluid flows characterized by a stiff scale-complexity. The specific focus of the project is in two areas: slender vortex filaments and high Reynolds number, and compressible flows at very low Mach number. In both cases, the approach will be based on combining asymptotic multiple-scale analysis with state-of-the-art numerical methods for flow simulation. The results of this work could have implications for related areas, such as, turbulent flows, oceanic and atmospheric flows, shocks, flames, interfaces, and bubbles, among others.

该奖项支持奥马尔·巴里奥博士和一名来自约翰霍普金斯大学的研究生 大学与安全工程系的鲁珀特克莱因合作， 位于伍珀塔尔的贝吉舍大学 该合作将调查开发 的渐近为基础的计划，使模拟流体流动的特点是， 僵硬的规模复杂性。 该项目的具体重点是两个方面：细长涡 细丝和高雷诺数，和可压缩流在很低的马赫数。 在这两种情况下，该方法将基于结合渐近多尺度分析 用最先进的数值方法进行流动模拟。 这项工作的结果 可能对相关领域产生影响，例如湍流、海洋和 大气流动、冲击、火焰、界面和气泡等。