Abstract
The quantitative description and understanding of combustion processes needs extreme computational efforts and has at present to be restricted to relatively simple cases, due to a very complex interaction of chemical reaction, transport, and convection described by instationary or stationary partial differential equation systems. However, even a rather simplified treatment can give a lot of insight into combustion processes, as demonstrated in the following mainly for ID and 2D systems. Typical combustion processes are considered in the following with emphasis on three topics:
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1.
Basic physics and chemistry of combustion processes; homogeneous reaction systems: Processes like transport phenomena (heat conduction, mass diffusion etc.), thermodynamics, and chemistry in spatially homogeneous systems are studied because of their importance as basic elements of simple combustion processes.
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2.
Structure of laminar flame fronts; stationary and instationary flame propagation: Premixed and diffusion flame fronts are basic elements of turbulent flames in cases where chemical reaction can be assumed to take place in relatively thin layers (“flamelet model”). The structure of stationary laminar flame fronts as the result of the interaction of transport, chemistry, and flow is considered in detail for simple hydrocarbon fuels. Instationary behaviour plays an important role in ignition processes and for phenomena like quenching of turbulent flames, noise generation, etc.
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3.
Pollutant Formation Chemistry; Consequences for Turbulent Combustion: A detailed description of the chemistry of combustion is necessary to describe and understand pollutant formation (nitrogen oxides, polycyclic hydrocarbons, soot, etc.). Different methods are described to include detailed chemistry in terms of sets of elementary reactions into turbulent combustion modelling.
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Warnatz, J. (2000). Chemistry of Combustion Processes. In: Vovelle, C. (eds) Pollutants from Combustion. NATO Science Series, vol 547. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4249-6_2
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DOI: https://doi.org/10.1007/978-94-011-4249-6_2
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