1996-10-01

Model Verification of the Evaporating Diesel Spray Distribution in the Combustion Chamber of a D.I. Diesel Engine 962054

Evaporating diesel spray distributions in the combustion chamber of a direct injection diesel engine were calculated using a phenomenological simulation model, and the calculated results were described three dimensionally using a 3-D volume rendering application which has been developed by the authors. The evaporating diesel spray distributions in the combustion chamber were measured using a technique based on the extinction of ultraviolet (wavelength of 280nm) and visible (wavelength of 560nm) laser lights. The measured results were compared with the predicted spray distributions in order to verify the simulation model. The calculated results show reasonably good agreement with the experimental results, and the validity of this spray model as a practical computational tool for estimating diesel spray behavior is confirmed by this comparison.

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