CFD Validation of Nozzle Performance for Chilled Beam Design

冷梁设计喷嘴性能的 CFD 验证

• 批准号: 515840-2017
• 负责人: Dow, Karen
• 金额: $ 1.82万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 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=640642
• 关键词: CFD; Validation; Nozzle; Performance; Chilled

Price Industries is a market leader in supplying air distribution, critical controls and noise control products. Oneof their products, a chilled beam, is a cooling/heating device that uses high velocity nozzles to draw room airthrough an air/water heat exchanger. It is important to achieve as much mixing of the air through the coil aspossible so Price Industries is interested in changing the shape of the nozzles from a traditional circular shapeto optimize the design of the chilled beam unit. They have recently conducted physical experiments toinvestigate the effect of nozzle shape on the air flow, which has proven to produce very complex turbulent flowfields. Price has a dedicated team that uses Computational Fluid Dynamics (CFD) to validate the design of airdistribution systems in a wide range of commercial and industrial spaces and for innovative research productdevelopment support. It is important for the company to be able to accurately predict the flow from the nozzlein a chilled beam in order to simulate the air distribution system using CFD. It is unlikely that the simpleturbulence model that Price currently uses in their CFD simulations will be able to capture the complexturbulent flow that is produced from a non-circular jet. Price requires some investigation and guidance on themost effective and efficient CFD method in order to accurately capture this complex flow field. This researchwill evaluate the effectiveness of several CFD methods for modelling the nozzle outflow for various nozzleshapes and provide recommendations to improve the CFD modelling for the chilled beam nozzle design. Thiswork will support Price Industry by potentially reducing the time required to introduce new HVAC products tothe market as new designs can be tested first using numerical simulations using their improved CFDmethodology.

价格行业是提供空气分布，关键控制和噪声控制产品的市场领导者。他们的产品的一种冷梁是一种冷却/加热设备，它使用高速喷嘴吸引了空中/水热交换器。重要的是要通过盘管的多大混合实现空气，因此价格工业有兴趣从传统的圆形塑形中更改喷嘴的形状，从而优化了冰芯梁单元的设计。他们最近进行了物理实验，以研究喷嘴形状对气流的影响，事实证明，这会产生非常复杂的湍流。 Price拥有一个专门的团队，该团队使用计算流体动力学（CFD）来验证在广泛的商业和工业空间中的AirDistripution系统的设计，并为创新的研究产品开发支持。对于公司而言，重要的是能够准确预测从喷嘴的冷光梁流动，以便使用CFD模拟空气分配系统。价格当前在其CFD模拟中使用的简单扰动模型不可能能够捕获由非圆形喷气机产生的相关流量。价格需要对themost有效且有效的CFD方法进行一些调查和指导，以便准确捕获这个复杂的流场。这项研究将评估几种CFD方法在为各种喷嘴塑料的喷嘴外流建模的有效性，并提供建议，以改善冰冷的光束喷嘴设计的CFD建模。这项工作将通过潜在地减少引入新的HVAC产品所需的时间来支持价格行业，因为可以使用其改进的CFDMethodology首先使用数值模拟对新设计进行测试。