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A Transient Spray Mixing Model for Diesel Combustion
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1976 by SAE International in United States
Annotation ability available
A transient spray mixing model forming the basis of heterogeneous combustion in direct injection diesel engines is described.
Experimental results of transient fuel sprays in a high pressure, high temperature chamber form the basis of spray growth equations. Use of similarity of concentration profile across the spray in conjunction with spray geometry and mass conservation yields a complete description of spatial and temporal fuel-air distribution. Fuel preparation and air entrainment rates are calculated from the history of fuel-air distribution.
Progressive evolution of combustion zones is determined by the fuel-air mixing process. Energy conservation and chemical kinetics calculations in each zone yield cylinder pressure and local nitric oxide concentration.
The role of fuel-air mixing in diesel combustion is discussed. The model results are compared with experimental data.
CitationChiu, W., Shahed, S., and Lyn, W., "A Transient Spray Mixing Model for Diesel Combustion," SAE Technical Paper 760128, 1976, https://doi.org/10.4271/760128.
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