Gaseous Simulation of Diesel-Type Sprays in a Motored Engine 890793
The effect of fuel injection on the flow and the spray/swirl and spray/piston interactions in direct-injection diesel engines have been investigated by simulating diesel sprays with gaseous jet(s) injected through centrally located, single- and multi-hole nozzles into the quiescent and swirling air of a motored engine running at 200rpm and incorporating a flat piston and a re-entrant piston-bowl. The axisymmetric velocity field with and without ‘fuel’ injection was characterised by laser velocimetry near TDC of compression in terms of spatially-resolved ensemble-averaged axial and swirl velocities, the ‘fuel’ concentration field was quantified by laser Rayleigh scattering and the two-dimensional flow was visualised by gated still photography using hollow microballoons as light scatterers.
Citation: Arcoumanis, C., Whitelaw, J., and Wong, K., "Gaseous Simulation of Diesel-Type Sprays in a Motored Engine," SAE Technical Paper 890793, 1989, https://doi.org/10.4271/890793. Download Citation
Author(s):
C. Arcoumanis, J.H. Whitelaw, K.Y. Wong
Affiliated:
Imperial College of Science, Technology and Medicine London, England
Pages: 28
Event:
SAE International Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE Transactions Journal of Engines-V98-3
Related Topics:
Diesel / compression ignition engines
Fuel injection
Pistons
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »