We present (1) gas fuel combustion rate expressions using the full kinetic reaction mechanism and the reduced mechanism, (2) a comparison of calculated results by Lagrangian and Eulerian methods on spray and solid particles, (3) the wall boundary treatment such as a wall function and low Reynolds number model, (4) a devolatilization reaction model of pulverized coal such as the FLASHCHAIN model, (5) kH turbulence model and LES approach on combustion flow field, (6) radiative heat transfer in combustion, (7) soot formation in the flame, (8) NOx formation mechanism, and (9) treatment on unburned particle fragmentation. Considering this overview of the above-mentioned modeling, the future of combustion simulation is discussed. Key words: Combustion, numerical simulation, LES, radiative heat transfer, soot formation
Overview of Combustion SimulationCombustion is a complicated phenomenon which involves motion, conduction, convection, and radiative heat transfer, radical ionic reaction of the fluid, and so on. It is even more difficult to solve the combustion on an individual gaseous molecule in its present state, a situation which has already been realized in the case of fluid dynamics. It thus becomes necessary to carry out calculations using the best available model.
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