| 講演要旨： |
Currently there exists a need for combustion devices that operate more efficiently and that produce less pollutants. Future combustion devices will run at high turbulence intensities in order to mix the initially separated reactants over short time periods. Higher mixing rates, however, can lead to local flame extinction and reignition. Therefore, the prediction of such operation conditions is important for the design of efficient combustors. Models for the prediction of flame extinction, the formation of nitrogen oxide, and the formation of soot will be presented, which are integrated into an LES combustion model. Applications of the models in simulations of simple flame configurations and more complex furnace and aircraft engine combustors will be shown and compared with experimental data. |
