Course Description

Dynamics of Combustion Waves in Premixed Gases (Monday-Friday)
Lecturer: Prof. Paul Clavin, Aix-Marseille Université
Course Content: The purpose of this course is to present advances in the theory of unsteady combustion waves in premixed gases; flames, detonations and explosions. Attention will be focused on fundamental aspects. The basic approximations of the conservation equations will be discussed first in the context of the structure of the planar waves. The lectures will then cover a large variety of phenomena occurring in many applied fields, ranging from safety in nuclear power plants to rocket or car engines: ignition, quenching, thermo-acoustic instabilities, cellular and turbulent flames, combustion noise, direct and spontaneous initiation of detonations, deflagration-to-detonation transition, Mach-stem formation on shock wave, galloping and cellular detonations.

 

Combustion Chemistry (Monday-Friday)
Lecturer: Prof. Alison Tomlin, University of Leeds
Course Content: Chemical kinetic process underlie all combustion phenomena. Consequently, accurately predicting chemical changes is fundamentally important for predicting combustion within a range of devices including engines, boilers, furnaces and gas turbines. On the other hand, chemical oxidation processes, particularly for complex fuels such as biofuels, involve very large numbers of species and reactions posing challenges for including detailed chemistry within models of practical devices. With this in mind, the course will take students on a journey from the fundamentals of reaction kinetics basics through to constructing chemical mechanisms for different fuel types, reducing them to facilitate their use in reactive flow models and finally to quantifying the impact of inherent uncertainties on their predictive quality. Topics will include: chemical mechanism structure; stoichiometry; rate equations for basic reactors; temperature and pressure dependence of rate coefficients; determination of rate constants via experimental and theoretical methods; basic thermodynamics; automatic generation of reaction mechanisms; ignition phenomena and low temperature chemistry; adiabatic flame temperature and high temperature chemistry; pollutant formation mechanisms; future fuels and challenges they pose for combustion systems; model uncertainties and sensitivity analysis; chemical model reduction methods.

 

Advanced Laser Diagnostics in Combustion Research (Monday-Friday)
Lecturer: Prof. Mark Linne, University of Edinburgh
Course Content: This course will begin by introducing the basic topics underlying laser diagnostics; including development of commonly used expressions from the equation of radiative transfer, selected topics in physical optics, an introductory explanation of quantum mechanics and molecular structure, transitions, transition strengths and transition line shapes. Following that a selection of diagnostics is presented in the same context. Techniques to be discussed will include various forms of velocimetry (PIV, stereoscopic PIV, tomographic PIV, and optical flow velocimetry), spray diagnostics (e.g. SLIPI, ballistic imaging, 2-photon PLIF), absorption (including wavelength modulation, cavity enhancement, and frequency combs), laser induced fluorescence, Rayleigh and Raman scattering, and coherent anti-Stokes Raman spectroscopy. A lecture on basic laser physics will also be included.

 

Turbulent Combustion I: Modelling and Applications (Monday-Thursday)
Lecturer: Prof. Epaminondas Mastorakos, University of Cambridge
Course Content: Turbulent combustion sits at the intersection of chemistry and turbulence, both non-linear phenomena and both topics of extensive research. Modelling is needed in order to provide some predictive capability for this practically-important reacting flow problem. In these lectures, the usual models are reviewed, with focus on their theoretical justification and applicability to various situations showing finite-rate kinetic effects such as ignition, extinction, and pollutant formation. In addition to the theory, case studies from spark-ignition, diesel, and gas turbine engine combustion modelling are discussed extensively in order to show the strengths and limitations of each modelling approach. A brief overview of some pertinent topics from classical turbulence studies is included to enhance the student's understanding of turbulent combustion modelling.

Turbulent Combustion II: Local Structure and Propagation (Friday)
Lecturer: Prof. Swetaprovo Chaudhuri, University of Toronto
Course Content: 1. Local structure and propagation of turbulent premixed flames 2. Flame front instability turbulence interaction 3. Turbulent flame speed 4. Turbulent flame blowoff and role of local flame extinction by stretch.

 

Frontiers in Combustion Methodologies I: Plasma-Assisted Combustion (Monday-Wednesday)
Lecturer: Prof. Yiguang Ju, Princeton University
Course Content: This course will provide an overview of the fundamentals of cool flame and hot flame dynamics and chemistry, non-equilibrium plasma discharge, plasma enhancement of ignition and flame propagation, plasma combustion chemistry, plasma thermal-chemical instability, diagnostics and modeling, and perspectives of technical challenges and future research. The course will include the following lectures: (1) Dynamics and chemistry of low temperature ignition and cool flames, (2) non-equilibrium plasma discharges, (3) dynamics of plasma assisted low temperature combustion and a new concept of thermal-chemical instability, (3) applications of plasma assisted combustion for combustion enhancement and fuel reforming, (4) diagnostics of plasma physics and chemistry, and (5) perspectives of future research in plasma assisted combustion and low temperature fuel oxidation.

Frontiers in Combustion Methodologies II: Mechanism Reduction and Advanced Chemistry Solvers (Thursday-Friday)
Lecturer: Prof. Tianfeng Lu, University of Connecticut
Course Content: This course will provide an introduction to mechanism reduction based on sensitivity, connectivity and timescale analyses, and strategies to systematically identify the chemical kinetic processes controlling such critical flame behaviors as ignition, extinction and premixed reaction front propagation in laminar and turbulent environments. Strategies to control reduction errors and to accelerate simulations involving complex chemistry will also be discussed.