Browse Publications Technical Papers 2003-01-1841
2003-05-19

Modeling of Wall Impinging Behavior with a Fan Shaped Spray 2003-01-1841

The experiment-based droplet impinging breakup model was applied to a fan shaped spray and the impinging behavior was analyzed quantitatively. Evaluation of the quantitative results with validation tests verified the following.
  • The model enables prediction of fan shaped spray thickness after impingement caused by the breakup of fuel droplets, which could not be represented with the Wall-Jet model, widely used at present.
  • Fuel film movement on a wall is negligible when the injection pressure of the fan shaped spray is high and the spray travelling length is not too short.
  • The proposed heat transfer coefficient between fuel film and the wall is too small to represent the vaporizing rate of the fuel film.

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