Collaborative Research: Linking turbulent flow dynamics to meandering river migration

合作研究：将湍流动力学与蜿蜒河流迁移联系起来

• 批准号: 1823121
• 负责人: Ali Khosronejad
• 金额: $ 24.01万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-09-01 至 2022-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1823121&HistoricalAwards=false
• 关键词: Collaborative; Research; Linking; turbulent; flow

Rivers are central conduits for life in the US. They are thoroughfares for shipping, focal points for infrastructure and manufacturing, and oases for recreation and wildlife. Rivers often migrate as a natural process, one which has far-reaching consequences: it poses hazards to bridges and other infrastructure; shifts flooding patterns; and over geologic time, shapes underground resources, including groundwater and hydrocarbons. This project advances the field of Earth-surface science by building new tools to forecast river migration and a new, related curriculum for college science classes. The project will further diversity in the sciences by supporting a team of women and men from the mountain west to the east coast, who together represent two state universities and one Tribal College.A foundation of the research is a new set of state-of-the-art mathematical simulations using higher-performance computing techniques. These simulations will capture interactions between water flow and sediment transport across an unprecedented range of river shapes. Model predictions will be tested and refined using experiments in a scale model of a meandering river, and by comparison to geologic data sets. The research findings will help geologists, engineers, and river scientists to mitigate river hazards, manage wildlife habitat, and identify natural resources spanning the changing landscapes of the nation.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

在美国，河流是生命的中心管道。它们是航运的通道，基础设施和制造业的中心，以及娱乐和野生动物的绿洲。河流的迁移往往是一个自然过程，其影响深远：它对桥梁和其他基础设施造成危害；改变洪水模式；随着地质时间的推移，形成了地下资源，包括地下水和碳氢化合物。该项目通过建立预测河流迁移的新工具和为大学科学课程提供新的相关课程，推动了地球表面科学领域的发展。该项目将通过支持一个由来自山区西部到东海岸的男女组成的团队，进一步促进科学的多样性，他们共同代表两所州立大学和一所部落学院。这项研究的基础是一套使用高性能计算技术的最新数学模拟。这些模拟将捕捉水流和沉积物在前所未有的河流形状范围内的相互作用。模型预测将通过在蜿蜒河流的比例模型中进行实验，并与地质数据集进行比较，进行测试和改进。研究结果将帮助地质学家、工程师和河流科学家减轻河流危害，管理野生动物栖息地，并确定跨越国家不断变化的景观的自然资源。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Numerical Study on the Effect of Bank Vegetation on the Hydrodynamics of the American River under Flood Conditions

• DOI: 10.1061/(asce)hy.1943-7900.0001912
• 发表时间: 2021-09
• 期刊: Journal of Hydraulic Engineering
• 影响因子: 2.4
• 作者: K. Flora;Christian Santoni;A. Khosronejad

A computational study of expiratory particle transport and vortex dynamics during breathing with and without face masks

• DOI: 10.1063/5.0054204
• 发表时间: 2021-06-01
• 期刊: PHYSICS OF FLUIDS
• 影响因子: 4.6
• 作者: Khosronejad, Ali;Kang, Seokkoo;Sotiropoulos, Fotis
• 通讯作者: Sotiropoulos, Fotis

A comparative study of rigid-lid and level-set methods for LES of open-channel flows: morphodynamics

• DOI: 10.1007/s10652-019-09703-y
• 发表时间: 2019-07
• 期刊: Environmental Fluid Mechanics
• 影响因子: 2.2
• 作者: A. Khosronejad;M. Arabi;D. Angelidis;E. Bagherizadeh;K. Flora;A. Farhadzadeh

Large-eddy simulation of flash flood propagation and sediment transport in a dry-bed desert stream

• DOI: 10.1016/j.ijsrc.2020.02.002
• 发表时间: 2020-12
• 期刊: International Journal of Sediment Research
• 影响因子: 3.6
• 作者: A. Khosronejad;K. Flora;Zexia Zhang;Seokkoo Kang

Fluid dynamics simulations show that facial masks can suppress the spread of COVID-19 in indoor environments

• DOI: 10.1063/5.0035414
• 发表时间: 2020-12-01
• 期刊: AIP ADVANCES
• 影响因子: 1.6
• 作者: Khosronejad, Ali;Santoni, Christian;Sotiropoulos, Fotis
• 通讯作者: Sotiropoulos, Fotis