The Application of Phosphorescent Particle Tracking (PPT) to the Visualisation of Gas Flows in the Cylinder of a 1.8 Litre 4-Valve Engine 1999-01-1109
This paper describes the application of a new technique, Phosphorescent Particle Tracking (PPT), to the visualisation of gas flow streams in the cylinder of an engine flow rig. This technique uses small phosphorescent tracer particles suspended in the air-stream to provide evidence of the gas flow profile as they are carried away from the plane of excitation. A two colour version of the technique is also presented. This latter technique is shown to have the potential to reveal the interaction or degree of stratification of two flow streams within the cylinder.
Citation: Guerrier, M., Williams, P., Greig, A., Fry, M. et al., "The Application of Phosphorescent Particle Tracking (PPT) to the Visualisation of Gas Flows in the Cylinder of a 1.8 Litre 4-Valve Engine," SAE Technical Paper 1999-01-1109, 1999, https://doi.org/10.4271/1999-01-1109. Download Citation
M.P. Guerrier, P.A. Williams, A.R. Greig, M. Fry, A.J. Allnutt, J.N. Stewart
University College London, Cosworth Technology, Sira Ltd.
International Congress & Exposition
In-Cylinder Velocity Measurements, Combustion, and Flow Diagnostics-SP-1446, SAE 1999 Transactions - Journal of Engines-V108-3