Multi-scale Models of the Benthic Boundary Layer

底栖边界层的多尺度模型

• 批准号: RGPIN-2015-05882
• 负责人: Stastna, Marek
• 金额: $ 3.64万
• 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: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=665844
• 关键词: Multi; scale; Models; Benthic; Boundary

My research program aims to create easy to use, open source software based on cutting edge high-order numerical methods for the simulation of flow phenomena in natural waters with a focus on lakes and the coastal ocean. I, along with my HQP, use this software in high performance computing (HPC) environments (e.g. Compute Canada) to study coherent flow structures such as nonlinear waves and hydrodynamic instabilities, which often exhibit behaviour on very different length scales (tens of meters for the internal wave body, and sub centimetre scales for the hydrodynamic instabilities in the boundary layer in the wave footprint). In the detailed proposal my planned research program is divided into three Thematic Areas:***Thematic Area 1: "Boundary layer separation at the field scale", seeks to augment software tools for process studies of the bottom boundary layer so that they may seamlessly address research questions at the laboratory and the field scale.  The scientific focus is on identifying the mechanisms by which material such as sediment or dissolved oxygen concentration is transported across the bottom boundary layer.***Thematic Area 2: "Layered models and event based parametrizations", seeks to develop basin scale models for moderate sized lakes.  The three fundamental technical issues to address are how to properly represent the layers that intersect the bottom topography, how to effectively model the lake bottom (for example mud), and how to efficiently parametrize mixing events in high order models.***Thematic Area 3: "Lagrangian particle models with biological applications" seeks to develop modules for the software from Thematic Area 1 that faithfully represent the behaviour of swimming individuals (such as zooplankton).  The scientific focus is on cataloging and understanding the ways in which internal wave processes (shoaling, wave breaking) influence how swimming organisms aggregate in the natural environment.***All three Thematic Areas build on significant progress made during the past funding cycle, and benefit from established collaborations with experimentalists and field scientists.  Unique facilities and practices developed for HQP training include theoretical coursework, computational facilities and software, and experimental facilities.***The nearshore environment, while geographically a small percentage of the world's oceans both by volume and area, is an ecological giant, with high productivity for sea life in general and for the subset of species that are harvested in various fisheries (e.g. crab, oysters, lobster). The proposed research program will provide novel tools for performing process studies of the hydrodynamics of the nearshore zone, with a focus on multiple lines of converging evidence, namely multiple model types. These tools will be used to answer fundamental questions of how material is transported across the bottom boundary layer at the field scale.**

我的研究计划旨在创建易于使用的开源软件，该软件基于尖端高阶数值方法，用于模拟自然水域中流动现象，重点关注湖泊和沿海海洋。 I, along with my HQP, use this software in high performance computing (HPC) environments (e.g. Compute Canada) to study coherent flow structures such as nonlinear waves and hydrodynamic instabilities, which often exhibit behaviour on very different length scales (tens of meters for the internal wave body, and sub centtimetre scales for the hydrodynamic instabilities in the boundary layer in the wave footprint). In the detailed proposal my planned research program is divided into three Thematic Areas:***Thematic Area 1: "Boundary layer separation at the field scale", seeks to augment software tools for process studies of the bottom boundary layer so that they may seamlessly address research questions at the laboratory and The scientific focus is on identifying the mechanisms by which material such as sediment or dissolved oxygen concentration is transported across the bottom boundary layer.***Thematic Area 2: "Layered models and基于事件的参数”旨在为中等大小的湖泊开发盆地量表模型。 The three fundamental technical issues to address are how to properly represent the layers that intersect the bottom topography, how to effectively model the lake bottom (for example mud), and how to effectively parameterize mixing events in high order models.***Thematic Area 3: "Lagrangian particle models with biological applications" seeks to develop modules for the software from Thematic Area 1 that faithfully represent the behaviour of swimming individuals (such as zooplankton).科学的重点是分类和理解内部波浪过程（浅滩，波浪破裂）的方式影响游泳生物在自然环境中的聚集方式。为HQP培训开发的独特设施和实践包括理论课程，计算设施和软件以及实验设施。拟议的研究计划将提供新的工具，以对近岸区域的流体动力学进行过程研究，重点是多种收敛证据，即多种模型类型。这些工具将用于回答有关材料如何在现场尺度上跨边界层运输的基本问题。**