MRI: Development of Spatially-resolved spray scanning system (SSSS)

MRI：空间分辨喷雾扫描系统（SSSS）的开发

• 批准号: 1229506
• 负责人: Andre Marshall
• 金额: $ 37.69万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1229506&HistoricalAwards=false
• 关键词: MRI; Development; Spatially; resolved; spray

Sprays are used in a variety of technology intensive industries from microelectronic manufacturing to fire-protection applications. Because of the complexity of the physical processes associated with atomizing a continuous stream of fluid into a spray and the difficulty associated with characterizing atomization details, spray formation and its relationship to injection conditions is poorly understood. As a result, spray related development is inhibited by analytical concessions, which rely primarily on "cut and try" and empirical approaches. However, as computer based design tools become increasingly popular, detailed atomization models will be needed for computer-aided development, analysis, and evaluation of spray devices and systems. It is essential to precisely characterize engineered sprays in order to develop models to describe their behavior and to leverage this understanding for advancements in spray technology. Building on existing instrumentation and laboratory infrastructure, this team seeks to develop a major instrument capable of characterizing large-scale sprays (e.g. sprays used in fire suppression applications) while also providing the capability to interrogate small-scale sprays (e.g. sprays used in microelectronic applications). The Spatially-resolved Spray Scanning System (SSSS) expands on ideas from the PI's NSF PECASE research and a recent UM invention (PP: 61/548530) that allows for scanning the near-field of large-scale fire suppression sprays.

喷雾剂用于从微电子制造到消防应用的各种技术密集型行业。由于将连续的流体雾化成喷雾的物理过程的复杂性，以及描述雾化细节的困难，人们对雾化形成及其与喷射条件的关系知之甚少。因此，与喷雾有关的发展受到分析让步的阻碍，这些让步主要依赖于“试试看”和经验方法。然而，随着基于计算机的设计工具变得越来越流行，将需要详细的雾化模型来进行计算机辅助开发、分析和评估喷雾装置和系统。为了开发描述其行为的模型，并利用这一认识促进喷雾技术的进步，准确地描述工程喷雾的特征是至关重要的。在现有仪器和实验室基础设施的基础上，该团队寻求开发一种主要仪器，能够表征大规模喷雾(例如用于灭火应用的喷雾)，同时还提供审问小型喷雾(例如用于微电子应用的喷雾)的能力。空间分辨喷雾扫描系统(SSSS)扩展了PI的NSF PECASE研究和UM最近的一项发明(PP：61/548530)的想法，该发明允许扫描大规模灭火喷雾的近场。