Experimental Study of Turbulent Jets and Flow in Chilled Beam

与北美领先的空气分配和供暖、通风及空调(HVAC)系统制造商Price Industries Limited的工程师密切合作，该研究项目将彻底了解与各种喷嘴几何形状和冷梁产生的湍流射流相关的复杂流动动力学。这种流动具有多种环境和工程应用，包括暖通空调系统、工业废物处理、强化换热和推力产生装置。在大多数这样的应用中，环境气流的有效卷吸及其与核心射流的混合是必不可少的。 在这个项目中，我们将研究不同的喷嘴几何形状和它们的空间布置如何影响环境流和核心喷流之间的诱导和混合。实验将在普莱斯工业公司研究实验室的大型设施中进行，也将在马尼托巴大学的实验室设施中进行小规模模型试验。在这些实验中将测量速度和压力分布。 该项目的结果将作为基准数据库，以促进能够处理这种复杂流动条件的数值模型的开发和验证。这样的模型将对暖通空调公司和其他打算利用湍流射流和环境气流之间的增强感应和混合来提高设备效率的公司非常有利。 在整个项目中，将向一名博士生和一名理科硕士提供培训。一名学生和一名本科生。

In close collaboration with engineers from Price Industries Limited, a leading manufacturer of air distribution and heating, ventilation and air conditioning (HVAC) systems in North America, this research project will provide a thorough understanding of the complex flow dynamics associated with turbulent jets produced from various nozzle geometries and also in chilled beams. This type of flow has diverse environmental and engineering applications, including HVAC systems, industrial waste disposal, heat transfer augmentation and thrust producing devices. In most of these applications, an efficient entrainment of the ambient flow and its mixing with the core jet is essential. In this project, we will study how various nozzle geometry and their spatial arrangements affect the induction and mixing between the ambient flow and the core jet flow. Experiments will be performed in a large-scale facility in a research lab at Price Industries and also small-scale model in a lab facility at the University of Manitoba. Velocity and pressure distributions will be measured in these experiments. The results from this project will serve as a benchmark database to facilitate the development and verification of numerical models capable of handling such complex flow conditions. Such models will be extremely beneficial to HVAC companies and other companies that intend to exploit enhanced induction and mixing between turbulent jets and ambient flow to improve the efficiency of their devices. Throughout the project, training will be provided to one PhD student, one M.Sc. student and one undergraduate student.