Basic Studies of Vaporizing and Chemically Reacting Hydrocarbon Fuel Droplet Groups

碳氢燃料液滴群汽化和化学反应的基础研究

• 批准号: 9711072
• 负责人: Harry Dwyer
• 金额: $ 32.5万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-10-01 至 2000-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9711072&HistoricalAwards=false
• 关键词: Basic; Studies; Vaporizing; Chemically; Reacting

Abstract - Dwyer This is a study of fundamental processes in chemically reacting hydrocarbon droplet groups and spray systems. Numerical simulations are performed with a simplified droplet dynamics flow system that incorporates many features of a more complex spray system but allows for a physical interpretation that can be and is confirmed experimentally. Emphasis is on those physical and chemical processes influencing pollutant formation, notably nitric oxide, excess hydrocarbons, and soot. The simplified flow system is fully three-dimensional and relies on multiple line droplet arrays in configurations that involve interactions with cold walls and the formation of droplet clouds. The program is designed to give the basic flowfield information needed by statistical models of diesel engine sprays such as the KIVA computer code and also to give fundamental information on the vaporization and ignition of droplet groups. This program is designed to provide information needed to reduce major pollutants produced by spray systems in diesel engines.

摘要-德怀尔 这是一个化学反应的碳氢化合物液滴组和喷雾系统的基本过程的研究。 数值模拟进行了简化的液滴动力学流动系统，结合了许多功能的一个更复杂的喷雾系统，但允许的物理解释，可以和实验证实。 重点是影响污染物形成的物理和化学过程，特别是一氧化氮，过量的碳氢化合物和烟灰。 简化的流动系统是完全三维的，并依赖于多行液滴阵列的配置，涉及与冷壁的相互作用和液滴云的形成。 该程序的设计是为了提供柴油机喷雾统计模型所需的基本流场信息，如KIVA计算机代码，也提供有关液滴组的蒸发和点火的基本信息。 该计划旨在提供减少柴油发动机喷雾系统产生的主要污染物所需的信息。