Spray Modelling for GDI Application: Two Different Approach

Paper #:
  • 2016-28-0007

Published:
  • 2016-02-01
Citation:
Kancherla, R., Rathinam, B., Douailler, B., Naithani, U. et al., "Spray Modelling for GDI Application: Two Different Approach," SAE Technical Paper 2016-28-0007, 2016, https://doi.org/10.4271/2016-28-0007.
Pages:
7
Abstract:
This state of art investigation report explains the limitations of Rosin-Rammler approach in comparison with breakup approach. The injection phenomenon of a commercial injector is simulated at various injection pressures, with Heptane (C7H16) in a spray bomb. It is observed that Breakup approach is better suitable in terms of correlation for spray modelling than the Rosin-Rammler approach when the injection pressures are 10 and 20 MPa, the SMD correlation shows also a good correlation at these pressures. At 4 MPa, correlation is a bit poorer, which is coherent as break-up models are best suited to high injection pressures configurations. Also, in each approach the primary dependent parameters are fine-tuned and their effects are discussed.
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