US-Germany Cooperative Research: Turbulence-Ignition Coupling

美德合作研究：湍流-点火耦合

• 批准号: 0337701
• 负责人: Volker Sick
• 金额: $ 1.9万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-01-01 至 2006-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0337701&HistoricalAwards=false
• 关键词: US; Germany; Cooperative; Research; Turbulence

0337701SickThis award supports Volker Schmidt and students from the University of Michigan in a collaboration with Ulrich Maas of the Institute for Technical Combustion at the University of Stuttgart, Germany. The focus of the collaboration will be to produce a reliable numerical description of ignition processes that accommodates timescales covering many orders of magnitude and many chemical species and their related reaction rates. Initiating combustion is a critical step for both performance and safety related issues in many technical devices. An important example is the spark-initiated combustion used in reciprocating internal combustion engines. There, ignition and subsequent flame development and propagation are controlled by the highly complex interaction of physical parameters like turbulence, temperature, and pressure with chemical parameters, such as the composition of the mixtures. The expertise in laser-based imaging techniques at the University of Michigan and the expertise in multi-dimensional modeling of ignition processes that includes detailed chemical kinetics at the University of Stuttgart, when combined in the framework of an international exchange of students and scientists, will improve our understanding of the complex interaction of turbulence and ignition chemistry. Velocity and equivalence ratio measurements in an optical direct injection engine performed at the University of Michigan will assist improvements to simulation tools at the University of Stuttgart. In addition, involving students from both partner institutions will enhance the educational experience for those students beyond their current focus in their respective research projects and will allow them to study in a foreign country; this is almost a must in today's global research and business environment. Students will learn skills that they then can implement in their research projects at their home institutions. Substantial synergy is expected from this mutual training arrangement for both groups. Joining forces will enhance the outcome of the separate research efforts and is expected to result in significant progress of our understanding of turbulence-ignition coupling and our ability to simulate it.

0337701 Sick该奖项支持Volker施密特和密歇根大学的学生与德国斯图加特大学技术燃烧研究所的Ulrich Maas合作。 合作的重点是对点火过程进行可靠的数值描述，这种描述可容纳涵盖许多数量级和许多化学物质及其相关反应速率的时间尺度。 在许多技术设备中，引发燃烧是性能和安全相关问题的关键步骤。 一个重要的例子是在往复式内燃机中使用的火花引发燃烧。 在那里，点火和随后的火焰发展和传播由物理参数（如湍流、温度和压力）与化学参数（如混合物的组成）的高度复杂的相互作用控制。 密歇根大学的激光成像技术专业知识和斯图加特大学的点火过程多维建模专业知识，包括详细的化学动力学，当在学生和科学家的国际交流框架内结合起来时，将提高我们对湍流和点火化学复杂相互作用的理解。 在密歇根大学进行的光学直喷发动机中的速度和当量比测量将有助于改进斯图加特大学的模拟工具。 此外，来自两个合作机构的学生参与将增强这些学生的教育经验，超越他们目前在各自研究项目中的重点，并使他们能够在国外学习;这几乎是当今全球研究和商业环境中必须的。 学生将学习技能，然后他们可以在他们的研究项目在他们的家乡机构实施。 预计这两个小组的相互培训安排将产生巨大的协同作用。 联合力量将提高单独的研究工作的成果，并预计将导致我们的理解的显着进展的连续性点火耦合和我们的能力，以模拟它。