Numerical Studies of Turbulent Multiphase Flows and Heat Transfer in Industrial Thermofluid Systems

工业热流体系统中湍流多相流和传热的数值研究

• 批准号: 105727-2012
• 负责人: Zhang, Chao
• 金额: $ 1.6万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=569107
• 关键词: Numerical; Studies; Turbulent; Multiphase; Flows

The growing complexity of modern thermofluid systems has imposed increasingly stringent requirements on enhanced design tools, which, in turn, requires a better understanding of the fluid flow and heat transfer in thermofluid systems. A viable and reasonably inexpensive approach to improve the existing design tools is through the development of advanced numerical models. Thus, the need for time-consuming and often costly testing can be reduced. This proposal deals with formulating and verifying mathematical and numerical models and their applications in industries to improve/optimize the thermofluid systems. The main objectives of the proposed research are to develop accurate numerical models for simulations of multiphase flows and to develop CFD assisted control system design techniques for industrial thermofluid systems. The goals of this proposed research are: (1) to improve the numerical models for the simulation of vapour-liquid two-phase flows in condensers, (2) to develop and validate numerical models and techniques for the simulations of gas-solid and liquid-solid two-phase flows in CFB reactors including chemical reactions, (3) to develop and validate numerical models for the simulations of gas-solid two-phase flows, and heat and mass transfers in industrial drying processes in order to improve their efficiency, (4) to develop an integrated design methodology for industrial furnaces and their control systems using CFD assisted approach to reduce NOx emission, and (5) to develop CFD assisted control system design for SCWR to improve the safety and efficiency of SCWR. The significance of the proposed research is that it will provide improved design tools for designs of high efficiency industrial thermofluid systems, reduce the combustion-generated pollutants, and more importantly train highly qualified personnel (6 Ph.D. and 2 master's students) who will not only have the general knowledge of numerical simulations of fluid flow and heat transfer, but also have the ability to apply the general knowledge in various industrial applications.

现代热流体系统日益复杂，对增强的设计工具提出了越来越严格的要求，这反过来又要求对热流体系统中的流体流动和传热有更好的理解。改进现有设计工具的一种可行且合理廉价的方法是开发先进的数值模型。因此，可以减少对耗时且通常昂贵的测试的需求。本提案涉及数学和数值模型的制定和验证及其在工业中的应用，以改进/优化热流体系统。