Presented By: Aerospace Engineering
Chairs Distinguished Seminar: Innovations in Capturing Detailed Chemical Kinetic Features in Large-Eddy Simulations of Turbulent Combustion
Perrine Pepiot
Associate Professor
Sibley School of Mechanical and Aerospace Engineering
Cornell University
About the seminar:
The vital role of simulations and computational insights in reducing pollutant emissions, designing better engines and better fuels, and assessing the technical and economic viability of radically different combustion technologies, is now clearly established. A key enabling step is the development of computational approaches that allow our increasingly detailed knowledge of the chemical kinetics of realistic fuel oxidation to be applied to the modeling and simulation of combustion reactors. In this talk, I will briefly review the challenges associated with the integration of detailed chemical kinetics in reactive flow simulations. I will then discuss the progress made in the analysis and reduction of complex kinetic networks, from graph-based techniques to data-driven approaches, the characteristics of the reduced models they typically generate, and how those techniques can be enhanced through careful integration and coupling with CFD tools, wherein the flow characteristics adaptively inform the reduced chemical model to be used. I will conclude on the remaining challenges still to overcome, and potential avenues to do so.
About the speaker:
Dr. Pepiot is currently an Associate Professor in the Sibley School of Mechanical and Aerospace Engineering at Cornell University, USA. She has a Ph.D. and M.S. in Mechanical Engineering from Stanford University, and a M.S. in Aeronautics and Astronautics from the Ecole Nationale Superieure de l'Aeronautique et de l'Espace (Supaero) in Toulouse, France. Prior to joining the Cornell faculty in 2011, Dr. Pepiot held a research scientist position at the National Renewable Energy Laboratory in Colorado, US, on Biomass Gasification Process Modeling and Optimization. Dr. Pepiot’s main interest is in developing new modeling and computational tools to improve the description of complex chemical processes in CFD simulations of energy systems, especially in combustion. Her current work includes the development of automatic chemical kinetic analysis and reduction tools for multi-component fuel mixtures, new algorithms to efficiently handle complex chemistry in large eddy simulation of turbulent flames, with a focus on particle PDF methods, and the use of detailed multi-scale numerical techniques to simulate reactive particle-laden flows. She is currently an associate editor for Combustion and Flame, and has an active role in the Combustion Institute leadership at the local (Eastern States), US, and International levels.
Boeing Lecture Hall & Zoom - https://umich.zoom.us/j/91746715474
Associate Professor
Sibley School of Mechanical and Aerospace Engineering
Cornell University
About the seminar:
The vital role of simulations and computational insights in reducing pollutant emissions, designing better engines and better fuels, and assessing the technical and economic viability of radically different combustion technologies, is now clearly established. A key enabling step is the development of computational approaches that allow our increasingly detailed knowledge of the chemical kinetics of realistic fuel oxidation to be applied to the modeling and simulation of combustion reactors. In this talk, I will briefly review the challenges associated with the integration of detailed chemical kinetics in reactive flow simulations. I will then discuss the progress made in the analysis and reduction of complex kinetic networks, from graph-based techniques to data-driven approaches, the characteristics of the reduced models they typically generate, and how those techniques can be enhanced through careful integration and coupling with CFD tools, wherein the flow characteristics adaptively inform the reduced chemical model to be used. I will conclude on the remaining challenges still to overcome, and potential avenues to do so.
About the speaker:
Dr. Pepiot is currently an Associate Professor in the Sibley School of Mechanical and Aerospace Engineering at Cornell University, USA. She has a Ph.D. and M.S. in Mechanical Engineering from Stanford University, and a M.S. in Aeronautics and Astronautics from the Ecole Nationale Superieure de l'Aeronautique et de l'Espace (Supaero) in Toulouse, France. Prior to joining the Cornell faculty in 2011, Dr. Pepiot held a research scientist position at the National Renewable Energy Laboratory in Colorado, US, on Biomass Gasification Process Modeling and Optimization. Dr. Pepiot’s main interest is in developing new modeling and computational tools to improve the description of complex chemical processes in CFD simulations of energy systems, especially in combustion. Her current work includes the development of automatic chemical kinetic analysis and reduction tools for multi-component fuel mixtures, new algorithms to efficiently handle complex chemistry in large eddy simulation of turbulent flames, with a focus on particle PDF methods, and the use of detailed multi-scale numerical techniques to simulate reactive particle-laden flows. She is currently an associate editor for Combustion and Flame, and has an active role in the Combustion Institute leadership at the local (Eastern States), US, and International levels.
Boeing Lecture Hall & Zoom - https://umich.zoom.us/j/91746715474
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