Optimization of Diesel Chamber by Advanced Combustion Simulation

A calculation of thermodynamic cycle and combustion of a six-cylinder diesel by thermodynamic simulation tool BOOST and CFD simulation tool FIRE which was implanted advanced moving-meshes technology is presented in this paper. The mathematical models in the simulation of fuel spray and breakup, mixture formation and combustion of a diesel are described.Based on detailed insight into the governing processes provided by the 3D simulation results, various aspects of the interaction of spray propagation and combustion with chamber geometry, turbine intensity and the number of injection holes are discussed. Finally, some optimized configurations which took into account all of the factors mentioned above have been proposed in this paper.