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A CFD Investigation on the Nozzle of Orifices Distributing in Different Space Layers
Technical Paper
2008-01-0948
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
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.
Authors
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.Also In
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