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Numerical Visualization of Air Short-Circuiting in a Small Two-Stroke SI Engine
Technical Paper
2004-32-0009
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A 3-D CFD model for a small two-stroke SI engine has been developed using a commercial code. The model simulates the scavenging process from the exhaust port opening to closing. The fluid in this model is air only. RNG (re-normalized group) was adopted as the turbulence model. The moving piston was achieved using the deforming grid technique. Various methods for numerically visualizing the air short-circuited through the exhaust port were investigated. This paper reports the modified Janté method, particle spray and thermal images. Although the results are only qualitative identification of air short-circuiting, they show that all three methods have the potential to achieve quantitative identification of fresh charge short-circuiting.
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Citation
Hong, G., Mack, A., Menolotto, F., Jamieson, C. et al., "Numerical Visualization of Air Short-Circuiting in a Small Two-Stroke SI Engine," SAE Technical Paper 2004-32-0009, 2004, https://doi.org/10.4271/2004-32-0009.Also In
References
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