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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Imprimir: 2152-5102
ISSN On-line: 2152-5110

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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v24.i4-6.320
pages 769-779

Development of a Diesel Spray Atomization Model Considering Nozzle Flow Characteristics

Eunju Lee
Department of Mechanical Engineering, Pohang University of Science & Technology, Pohang, Korea
Kang Y. Huh
Mechanical Engineering Department, Pohang University of Science and Technology, Pohang, Korea
Jaye Koo
School of Aerospace and Mechanical Engineering, Korea Aerospace University, Goyang, Gyeonggi, 412-791, Republic of Korea


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.