Fundamental and Applied Combustion Dynamics

Series/Event Type: 
Description: 

The interaction of turbulent fluid motion with combustion chemistry has many interesting effects across a wide range of scales. In this talk, we will explore how laser-based measurement techniques can help explain such interactions using two very different examples. Particular emphasis will be placed on ‘high-speed’ laser diagnostics that acquire data with sufficient temporal resolution to capture causality of the targeted phenomena. After a brief introduction to the physics, capabilities, and limitations of the diagnostics, we will attempt to reconcile discrepancies observed between experimental reactant consumptions rate and classical flame sheet theories at high turbulence intensities. This will be done by explicitly tracking fluid elements through 4D experimental data sets. Switching from micro- to macro-scales, we then will explain the physical mechanisms triggering, sustaining, and attenuating thermoacoustic oscillations in an aeronautical gas turbine combustor at flight-relevant conditions. Understanding these mechanisms can lead to improved design and operation of aeronautical engines for reduced environmental impact.

Speaker: 
Adam M Steinberg, University of Toronto
Location: 
Bowen Hall
Room number or other detail: 
Room 222
Date/Time: 
Friday, October 14, 2016 - 3:30pm
Faculty Host: 
Mueller

Speaker Bio

Adam Steinberg is an Associate Professor at the University of Toronto Institute for Aerospace Studies. His research develops and applies laser measurement techniques to unravel turbulent reacting flows, with particular emphasis on aerospace and energy applications. Professor Steinberg obtained his PhD from the University of Michigan in 2009, and then spent three years at the German Aerospace Center before joining the University of Toronto. He is the recipient of the Hiroshi Tsuji Early Career Research Award, the McCharles Prize or Early Career Research Distinction, an Ontario Early Research Award, two Best Paper awards from the AIAA, a Distinguished Paper Award from the Combustion Institute, and several other distinctions. He is a member of the AIAA Propellants and Combustion Technical Committee and the Editorial Board of Combustion and Flame.
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