ICLASS 97
Proceedings of the Seventh International Conference on Liquid Atomization and Spray Systems

ISBN Print: 89-950039-2-8

Development of a Diesel Spray Atomization Model Considering Nozzle Flow Characteristics

DOI: 10.1615/ICLASS-97.1020
pages 828-835

Аннотация

An atomization model for plain orifice diesel fuel sprays is developed, which considers both turbulent fluctuation in the jet flow and wave growth by gas inertia force due to the jet velocity. It is assumed that the atomization time scale is the sum of the turbulent and wave growth time scale while the atomization length scale is given by the integral length scale of turbulence. The developed atomization model is implemented in the KIVA code in terms of two numerically different groups, the primary and secondary drop parcels. The computation results are in good agreement with the experimental data for the drop size distribution from Phase Doppler Particle Anemometry(PDPA) as well as the spray tip penetration and spray shape.