Particle Image Velocimetry Measurements in a High-Swirl Engine Used for Evaluation of Computational Fluid Dynamics Calculations 952381
Two-dimensional in-cylinder velocity distributions measured with Particle Image Velocimetry were compared with computed results from Computational Fluid Dynamics codes. A high-swirl, two-valve, four-stroke transparent-combustion-chamber research engine was used. Comparisons were made of mean-flow velocity distributions, swirl-ratio evolution during the intake and compression strokes, and turbulence distributions at top-dead-center compression. This comparison with the measured flows led to more accurate calculations by identifying code improvements including swirl in the residual gas, modeling of the gas exchange during the valve overlap, and improved numerical accuracy.
Citation: Reuss, D., Kuo, T., Khalighi, B., Haworth, D. et al., "Particle Image Velocimetry Measurements in a High-Swirl Engine Used for Evaluation of Computational Fluid Dynamics Calculations," SAE Technical Paper 952381, 1995, https://doi.org/10.4271/952381. Download Citation
David L. Reuss, Tang-Wei Kuo, Bahram Khalighi, Dan Haworth, Martin Rosalik
General Motors R&D Center
1995 SAE International Fall Fuels and Lubricants Meeting and Exhibition
Modeling in Diesel and SI Engines-SP-1123, SAE 1995 Transactions: Journal of Engines-V104-3