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R&D Journal
versão On-line ISSN 2309-8988
versão impressa ISSN 0257-9669
Resumo
HANSEN, A. C.. Modelling gas flow in a direct injection diesel engine: I - Squish and swirl. R&D j. (Matieland, Online) [online]. 1991, vol.7, pp.16-24. ISSN 2309-8988.
The objectives of this study were to formulate a less empirically based quasi-dimensional model which accounted for the gas flow characteristics of squish and swirl in a direct injection diesel engine and to verify the model with existing data. The model incorporates sub-models for generating in-cylinder gas flow components of squish and swirl at each crank angle between inlet valve closing and exhaust valve opening. Calibration and verification of the gas flow sub-models necessitated the use of published data. Good agreement was obtained between the present model and the experimental data from three engines, two with a bowl-in-piston and the other with a flat piston.
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