Advanced modeling of flows with turbulence, multiple phases and complex surfaces

湍流、多相和复杂表面流动的高级建模

• 批准号: RGPIN-2016-05103
• 负责人: Bergstrom, Donald
• 金额: $ 1.89万
• 依托单位: University of Saskatchewan
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=638450
• 关键词: Advanced; modeling; flows; turbulence; multiple

Many industrial and environmental flows of interest to engineers are turbulent and multiphase, and involve a solid boundary. A turbulent flow is characterized by apparently random fluctuations in the local velocity field due to eddy motions of different size and orientation. Turbulent flows are of great practical importance, since they are characterized by intense mixing and high transport rates. One important multiphase flow is the flow of a fluid containing solid particles. In this case, the particle transport is dominated by the hydrodynamic drag forces on the particles. The proposed research program will investigate the characteristics of turbulent and multiphase flows, with a focus on the fluid interaction with the solid surfaces. It will also study non-turbulent, micro-fluidic flows over complex walls associated with living tissues.

工程师感兴趣的许多工业和环境流动是湍流和多相的，并且涉及固体边界。湍流的特征在于由于不同大小和方向的涡流运动而在局部速度场中出现明显的随机波动。湍流具有很大的实际意义，因为它们的特点是强烈的混合和高传输速率。一种重要的多相流是含有固体颗粒的流体的流动。在这种情况下，颗粒的运输主要是由颗粒上的流体动力学阻力。拟议的研究计划将研究湍流和多相流的特性，重点是流体与固体表面的相互作用。它还将研究与活组织相关的复杂壁上的非湍流微流体流动。