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Intake System Optimization by Intake Loss Coefficient Method
Technical Paper
1999-01-3337
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Reduction of flow resistance in an intake system is essential for increasing the output of a four-stroke engine. Evaluation method regardless engine displacement or number of valves or cylinder must be required in intake system design. This study proposes intake loss coefficient as total evaluation method from flow in an intake port to charging flow into a cylinder. A three-dimensional, general-purpose Computational Fluid Dynamics (CFD) code was used to calculate an intake loss coefficient. A correlation was confirmed between an intake loss coefficient and the engine power output. Intake loss coefficients and the CFD technique may be used for efficient optimization of the shape of an intake system.
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Citation
Kobayashi, T. and Arase, K., "Intake System Optimization by Intake Loss Coefficient Method," SAE Technical Paper 1999-01-3337, 1999, https://doi.org/10.4271/1999-01-3337.Also In
References
- Harada Y. “Fluid Dynamic Engineering” Maki Shoten 1965
- Society of Fluid Dynamics Japan “Handbook of Fluid Dynamics” Maruzen 1987