Large-Eddy Simulation of Turbulent Scalar Transport Processes in Smooth and Rough Wall Boundary Layers

光滑和粗糙壁边界层中湍流标量输运过程的大涡模拟

• 批准号: 357453-2013
• 负责人: Wang, BingChen
• 金额: $ 2.33万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=549964
• 关键词: Large; Eddy; Simulation; Turbulent; Scalar

In mechanical, environmental and chemical engineering, turbulent transport of active and passive scalars in a boundary layer is a frequently encountered phenomenon, which has important applications for the engine industry, power plants, building environment, and prediction of air pollution in the atmospheric boundary layer. By their nature, turbulent convective flows driven by shear stresses, pressure gradients and scalar gradients are unsteady, and exhibit coherent flow structures that are highly interactive with the scalar transport processes.

在机械，环境和化学工程中，边界层中主动和被动标量的湍流运输是一种经常遇到的现象，它在发动机工业，发电厂，建筑环境以及在大气边界层中对空气污染的预测具有重要应用。从本质上讲，由剪切应力，压力梯度和标量梯度驱动的湍流对流流不稳，并且表现出与标量传输过程高度相互作用的相干流量结构。