Multiscale computational hydrodynamics with application to lake and coastal ocean hydrodynamics

多尺度计算流体动力学及其在湖泊和沿海海洋流体动力学中的应用

• 批准号: 311844-2010
• 负责人: Stastna, Marek
• 金额: $ 2.77万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=507830
• 关键词: Multiscale; computational; hydrodynamics; application; lake

Lakes dot the Canadian landscape, providing numerous benefits to Canadians (e.g. drinking water, recreation) as well as a home for both flora and fauna. Many lakes in southern Canada face pressure from increasing population, while those in the arctic are expected to be strongly affected by climate change. As a physical system, lakes are distinguished by the vast range of motions that occur inside them, from large scale motions driven primarily by the wind, to small scale processes dominated by fluid viscosity, such as those that occur near the lake bottom. A common feature of most lakes is some degree of temperature stratification with lighter (warm) fluid overlying denser (colder) fluid. This stratification facilitates significant wave motion (i.e. internal waves) in the lake interior. Recent advances in scientific computing and computer hardware present an opportunity to improve the simulation of both basin scale and near-bottom dynamic processes in lakes.

湖泊点缀着加拿大的风景，为加拿大人提供了许多好处（例如饮用水、娱乐），也是动植物群的家园。加拿大南部的许多湖泊面临着人口增长的压力，而北极地区的湖泊预计将受到气候变化的严重影响。 作为一个物理系统，湖泊的特点是其内部发生的运动范围广泛，从主要由风驱动的大规模运动，到由流体粘度主导的小规模过程，例如发生在湖底附近的运动。大多数湖泊的一个共同特征是存在一定程度的温度分层，较轻（温暖）的液体覆盖在较稠密（较冷）的液体上。这种分层促进了湖内部的显着波浪运动（即内波）。 科学计算和计算机硬件的最新进展为改进盆地规模和湖泊近底动态过程的模拟提供了机会。