Simulation of Three-Dimensional and Unsteady Lake and Reservoir Flows

三维非稳定湖泊和水库流量模拟

• 批准号: 8719509
• 负责人: Robert Street
• 金额: $ 27.4万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-07-15 至 1992-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8719509&HistoricalAwards=false
• 关键词: Simulation; Three; Dimensional; Unsteady; Lake

A numerical computer code is to be completed and tested against an already available benchmark laboratory experiment for the case of stably stratified turbulent flow. The code is based on a Large Eddy Simulation in which variable grid refinement and resolution is utilized to everywhere push the sub-grid turbulence effects into regions small enough to validate a universal sub-grid model which is independent of stratification and buoyancy effects. The eventual application of the code is to be modeling of stratified reservoirs and lakes, focusing on mixing and dispersion. The purpose of the model is to use adaptive grid methodology to produce much more accurate and high resolution results at a degree of complexity and cost no greater than these now used in the field.

在稳定分层湍流的情况下，将完成一个数值计算机代码，并与已有的基准实验室实验进行测试。该代码基于大涡模拟，其中利用可变网格细化和分辨率将子网格湍流效应处处推向足够小的区域，以验证独立于分层和浮力效应的通用子网格模型。该代码的最终应用是对分层水库和湖泊进行建模，重点是混合和分散。该模型的目的是使用自适应网格方法，在一定程度的复杂性和成本不超过目前在该领域使用的结果下，产生更准确和高分辨率的结果。