Modeling Studies of Bimodal and Multi-Regime Combustion Dynamics in a Pulsed Turbulent Transient Jet Flame

双峰和多区燃烧现象在非预混燃烧问题中是常见的，包括典型的实验室火焰和实际燃烧室。 该研究的目标是开发和验证预测模型的双峰和多制度的燃烧动力学。 国家的最先进的运输概率密度函数（PDF）的方法作为建模框架。 选择一种最近发展起来的统计瞬态射流火焰作为建模和仿真的主要目标火焰。 这项研究将促进对双峰和多状态湍流燃烧物理学的理解，并应促进未来的模型开发和验证，以复制这些复杂的燃烧动力学。 准确和有效的预测模型，使清洁燃烧室的设计应用在运输车辆和推进系统。 拟议的工作将通过计算实践的创新和网络基础设施的使用来加强计算工程。 将研究成果整合到本科和研究生课程中，旨在加强当前的工程课程。

1336075WangBimodal and multi-regime combustion phenomena are common in non-premixed combustion problems, including canonical laboratory flames and practical combustors. The goal of the study is to develop and validate predictive models for bimodal and multi-regime combustion dynamics. The state-of-the-art transported probability density function (PDF) approach is employed as the modeling framework. A recently developed statistically transient jet flame is chosen as the main target flame for the modeling and simulation. The study will advance understanding of bimodal and multi-regime turbulent combustion physics and should facilitate future model development and validation for replicating these complicated combustion dynamics. The accurate and efficient predictive models should enable design of clean combustors for applications in transportation vehicles and propulsion systems. The proposed work will enhance computational engineering through innovations in computational practice and the use of cyberinfrastructure. Integration of the research results into both undergraduate and graduate courses is aimed to enhance current engineering curriculum.