Investigation of the Interaction of Sprays from Clustered Orifices under Ambient Conditions Relevant for Diesel Engines 2008-01-0928
The objective of this research is to investigate the behavior of interacting sprays, so-called spray clusters, under typical Diesel combustion conditions. Visualizations and Phase-Doppler Anemometry are employed to characterize the macro- and microscopic spray properties. A significant effect of the cluster geometry on spray formation is noticed. Direct spray-spray interaction is found in all cases, with varying intensity depending on the included angle of the orifices within a cluster. The sprays from all investigated cluster nozzles penetrated significantly slower than those of a comparable conventional nozzle. The stability of the sprays is found to be very sensitive to the orientation of the cluster. Depending on this parameter the sprays from one cluster penetrate very similar or exhibit significant instabilities, especially at lower injection pressures.
Citation: Pawlowski, A., Kneer, R., Lippert, A., and Parrish, S., "Investigation of the Interaction of Sprays from Clustered Orifices under Ambient Conditions Relevant for Diesel Engines," SAE Int. J. Engines 1(1):514-527, 2009, https://doi.org/10.4271/2008-01-0928. Download Citation
Adam Pawlowski, Reinhold Kneer, Andreas M. Lippert, Scott E. Parrish
Institute of Heat and Mass Transfer, RWTH Aachen, General Motors R&D and Planning
SAE World Congress & Exhibition
Diesel Fuel Injection and Sprays, 2008-SP-2183, SAE International Journal of Engines-V117-3EJ, SAE International Journal of Engines-V117-3