U.S.-Belgium Cooperative Science Program: Analysis of the Structure of Fuel/Nitrogen Oxide Flames

该奖项将支持博士之间的持续合作研究。 科罗拉多大学梅尔文分支和皮埃尔货车教授 Tiggelen，燃烧物理化学实验室，天主教 比利时鲁汶大学。 研究将集中在 分析燃料/氮氧化物火焰的结构。 许多固体推进剂在燃烧过程中的分解会导致 气态烃和氮氧化物的形成， 其可以起反应以支持火焰高于表面， 推进剂 这些火焰可以提供热量，这些热量被反馈到 推进剂表面，从而影响燃烧速率。 许多燃料/氮氧化物火焰的实验测量是 在博尔德的科罗拉多大学进行。 拟议 与鲁汶天主教大学合作研究 涉及这些数据的化学动力学火焰建模。 的 研究工作将首先集中在火焰轮廓的描述上 燃料/氮氧化物火焰数据，使用火焰代码， 完整的化学动力学机制。 第二项任务是 用火焰程序预测自由燃烧速度 火焰与实验数据进行比较。 最后一项任务 将是模拟氨添加火焰的化学性质。 两 美国和比利时的调查人员在以下方面拥有丰富的专业知识： 动力学场 这项研究的结果将是 有益于实际燃烧问题，例如氮氧化物 生产缓解计划和改进的绩效 硝胺基推进剂。

This award will support continued collaborative research between Dr. Melvin Branch, University of Colorado and Professor Pierre Van Tiggelen, Laboratory for Physical Chemistry of Combustion, Catholic University of Louvain, Belgium. The research will focus on the analysis of the structure of fuel/nitrogen oxide flames. The decomposition of many solid propellants during combustion leads to the formation of gaseous hydrocarbons and oxides of nitrogen, which can react to support a flame above the surface of the propellant. These flames can provide heat which is fed back to the propellant surface and thereby influence the burning rate. Experimental measurements of many of fuel/nitrogen oxide flames are in progress at the University of Colorado at Boulder. The proposed cooperative research with the Catholic University of Louvain involves the chemical kinetic flame modeling of these data. The research will focus first on the description of the flame profile data for fuel/nitrogen oxide flames using a flame code with a complete chemical kinetic mechanism. The second task will be to use the flame code to predict the burning velocity of free standing flames for comparison with the experimental data. The final task will be to model the chemistry of the ammonia added flames. Both the U.S. and Belgian investigators have significant expertise in the kinetics field. The results of this research will be of benefit to practical combustion problems such as nitrogen oxide production mitigation schemes and the improved performance of nitramine based propellants.