WPI ME Graduate Seminar Series 2018-2019
Combustion Fundamentals at Engine-Relevant Conditions
10:00-10:50 am, Wednesday, September 19
Reacting flow phenomena occurring in engines are complicated as a result of turbulent flow, interaction with solid boundaries, and extreme thermodynamic conditions. In order to understand and simulate combustion phenomena under such conditions, there is a necessity to develop accurate chemical kinetic and molecular transport models in addition to fluid mechanics models. Measurement of fundamental flame properties using low-dimensional experiments while avoiding complications associated with turbulence, heat loss, and instabilities is central to model development. These measurements form targets against which models have to be validated and their uncertainties to be constrained. Knowledge of laminar flame ignition, propagation, extinction, and dynamic response to external transient effects is also crucial to the development of low-order, physics-based models that are necessary to design and optimize engines; current computational resources are not sufficient to simulate engine phenomena from first principles.
Jagannath Jayachandran joined WPI this fall as an Assistant Professor in Aerospace Engineering. He completed his Ph.D. and post-doctoral tenure at the University of Southern California. His research interests include aerodynamic and kinetic processes in flames, physical and chemical processes at extreme thermodynamic conditions, high-speed air-breathing propulsion, rocket propulsion, detailed modeling of reacting flows, and laser-based experimental