A CFD Investigation on the Nozzle of Orifices Distributing in Different Space Layers 2008-01-0948
A series calculation methodology from the injector nozzle internal flow to the fuel spray was applied to investigate the internal flow and spray of a nozzle whose orifices distributed in different space layers. The nozzle internal flow calculation using an Eulerian three-fluid model and a cavitation model was performed. The needle valve movement during the injection period was taken into account in this calculation. The transient data of spatial distributions of velocity, turbulent kinetic energy, dissipation rate, void fraction rate, etc. at the nozzle exit were extracted. These output data were transferred to the spray calculation, in which a primary break-up model was applied to the Discrete Droplet Model (DDM). The calculation results were compared with the results of the measurement data of spray. Predicted spray morphology and penetration showed good agreement with the experiental data.
Citation: Du, H., Liu, J., and Tang, J., "A CFD Investigation on the Nozzle of Orifices Distributing in Different Space Layers," SAE Technical Paper 2008-01-0948, 2008, https://doi.org/10.4271/2008-01-0948. Download Citation
Author(s):
Huiyong Du, Jianxin Liu, Jinping Tang
Affiliated:
Henan University of Science and Technology
Pages: 7
Event:
SAE World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Diesel Fuel Injection and Sprays, 2008-SP-2183
Related Topics:
Fuel injection
Nozzles
Computational fluid dynamics
Valves
Turbulence
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »