Fuel atomization and mixture formation of Diesel engines was investigated in both pressurized vessels and a rapid compression machine by means of Phase-Doppler Anemometry as well as the Mie scattering, the Schlieren- and shadowgraph technique. The investigations focused on transient fuel-jet penetration, spray cone angle, droplet size and spray evaporation in dependance of gas density, injection pressure, and gas temperature. Since throttle effects inside the nozzle influence the spray formation, the characteristics of needle lift play an important role. Cavitation phenomena inside the nozzle was recognized. The experimental data, especially the measurement results of droplet velocity and droplet size, offer a reliable validation and optimization of numerical codes.
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Fuel atomization and mixture formation of Diesel engines was investigated in both pressurized vessels and a rapid compression machine by means of Phase-Doppler Anemometry as well as the Mie scattering, the Schlieren- and shadowgraph technique. The investigations focused on transient fuel-jet penetration, spray cone angle, droplet size and spray evaporation in dependance of gas density, injection pressure, and gas temperature. Since throttle effects inside the nozzle influence the spray formation...
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