Model for Predicting Air-Fuel Mixing and Combustion for Direct Injection Diesel Engine 860331
Based on a multi-zone spray-mixing approach, an air-fuel mixing and combustion model for a Direct Injection Diesel engine is presented. The predictions from the model show very good agreement with the experimental data for various engines under a wide range of operating conditions.
Major physical processes are modeled and validated independently. The atomisation process is based on Binary Drop Division concept. Fuel droplets are considered randomly distributed in the spray. A spherico-symmetrical transient drop evaporation model is used for evaporation calculation. A 3-dimensional spray-swirl interaction is modeled on centreline velocity vector/continuum approach. Turbulent mixing is characterised considering all possible available energy sources in DI diesel engines.
Citation: Gupta, A., Mehta, P., and Gupta, C., "Model for Predicting Air-Fuel Mixing and Combustion for Direct Injection Diesel Engine," SAE Technical Paper 860331, 1986, https://doi.org/10.4271/860331. Download Citation
Author(s):
Ajit K. Gupta, Pramod S. Mehta, C. P. Gupta
Affiliated:
Department of Mechanical & Industrial Engineering, University of Roorkee Roorkee, India
Pages: 24
Event:
SAE International Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE Transactions 1986-V95-86
Related Topics:
Diesel / compression ignition engines
Combustion and combustion processes
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