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Airflow Optimization w/ Distinct Intake Valves Designs by Numerical and Experimental Study in a 4-Cylinder Spark Ignition Engine
Technical Paper
2015-36-0104
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper deals with the study of different design configurations for intake valves and valve seats on a current production cylinder head and their effect on airflow behavior and optimization, under steady flow condition.
The analysis was performed trough a Design for Six-Sigma methodology (DFSS). The cases were simulated through computational fluid dynamics (CFD) software and a prototype considering the best configuration was built and tested at flow bench.
Correlation between simulation and experimental data was performed in order to validate the results for current, as well as, for future studies. The goal is to determine how geometric design variations on intake valve profiles and valve seats affect airflow on the particular cylinder head.
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Authors
Citation
Martins, F., Onoda, R., and Gutierrez, H., "Airflow Optimization w/ Distinct Intake Valves Designs by Numerical and Experimental Study in a 4-Cylinder Spark Ignition Engine," SAE Technical Paper 2015-36-0104, 2015, https://doi.org/10.4271/2015-36-0104.Also In
References
- Heywood , John . Internal Combustion Engine Fundamentals McGraw Hill New York, NY 1988
- Schlichting , H. Boundary Layer Theory 7th McGraw Hill New York, NY 1979
- CD-Adapco StarCCM+ User Guide Version 5.02 2011
- Hamilton , L. J. , Cowart , J.S. , Rozich , J. J. The effects of Intake Geometry on SI Engine Performance SAE Technical Paper 2009-01-0302
- Mattarelli , E. , Valentini , A. On the flow Through the Valve Assembly in Engine Cycle Simulations SAE Technical Paper 2000-01-0570
- Blair , G.P. Relationship between discharge coefficients and accuracy of engine simulation SAE Paper 962527
- Gault R. I. , Thornhill D. J. and Fleck R. , Mackey D. O. , Chatfield G. F. Analysis of the Steady Flow Characteristics through a Poppet Valve SAE paper 2004-01-1676
- Qi Y. , Liu H. , Midkiff K. , Puzinauskas P. A Feasible CFD Methodology for Gasoline Intake Flow Optimization in a HEV Application - Part2: Prediction and Optimization SAE Paper 2010-01-2238