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A Unified Model Considering Effects of Droplet Break-Up and Air Entrainment at the Initial Stage of Fuel Spray Penetration

Author

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  • S. Jafarmadar
  • B. Jalilpour
  • D. D. Ganji
  • H. Taghavifar

Abstract

This paper proposes a new unified single model that considers droplet break-up and air entrainment impact on three flow regimes (namely, Stokes, Allen, and Newton) in the initial stage of fuel spray penetration. Homotopy perturbation method was used to obtain semianalytical solutions of unified single model on diesel fuel’s spray penetration when the influence of air entrainment is small (up to 0.1-0.2 ms after the start of injection). It is demonstrated that the applied analytical method is very straightforward in comparison with existing techniques. Furthermore, it is decidedly effectual in terms of accuracy and rapid convergence. The formulation of the problem is presented in the text as well as the analytical and numerical procedures.

Suggested Citation

  • S. Jafarmadar & B. Jalilpour & D. D. Ganji & H. Taghavifar, 2014. "A Unified Model Considering Effects of Droplet Break-Up and Air Entrainment at the Initial Stage of Fuel Spray Penetration," Mathematical Problems in Engineering, Hindawi, vol. 2014, pages 1-11, April.
    • Handle: RePEc:hin:jnlmpe:127107
    DOI: 10.1155/2014/127107
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