Basic Studies of Vaporizing and Chemically Reacting Hydrocarbon Fuel Droplet Groups

这是对碳氢化合物液滴群和喷雾系统化学反应的基本过程的研究。数值模拟是用一个简化的液滴动力学流动系统进行的，该系统包含了更复杂的喷雾系统的许多特征，但允许物理解释，可以通过实验得到证实。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、过量碳氢化合物和煤烟。简化的流动系统是完全三维的，依赖于多线液滴阵列的配置，涉及与冷壁的相互作用和液滴云的形成。该程序旨在提供柴油发动机喷雾统计模型（如KIVA计算机代码）所需的基本流场信息，并提供液滴群汽化和点火的基本信息。该计划旨在提供所需的信息，以减少柴油发动机喷雾系统产生的主要污染物。

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.