Three-Dimensional Computations of Diesel Sprays in a Very High Pressure Chamber

Paper #:
  • 941896

Published:
  • 1994-10-01
Citation:
Hou, Z., Abraham, J., and Siebers, D., "Three-Dimensional Computations of Diesel Sprays in a Very High Pressure Chamber," SAE Technical Paper 941896, 1994, https://doi.org/10.4271/941896.
Pages:
13
Abstract:
Results of three-dimensional computations of non-vaporizing and vaporizing Diesel sprays in a very high pressure (up to 18.4 MPa without combustion) environment are presented. These pressures and corresponding density ratios of ambient gas to injected liquid are about a factor of two greater than those in current Diesel engines. The spray model incorporates a line source for drops, heat, mass and momentum exchange between the gas and liquid phases, turbulent dispersion of drops, collisions and coalescences, and drop breakup. The accuracy of the model is assessed by making comparisons of computed and measured spray penetrations. Reasonable agreement is obtained for a broad range of conditions. A scaling for time and axial distance clarifies these results.
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