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CFD Simulation and Validation of the Scavenging Process in a 125cc 2-Stroke Racing Engine
Technical Paper
2006-32-0061
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Computational Fluid Dynamics (CFD) is frequently used to predict complex flow phenomena and assist in engine design and optimization. The scavenge process within a 2-stroke engine is key to engine performance especially in high performance racing applications. In this paper, FLUENT CFD code is used to simulate the scavenging process within a 125cc single cylinder racing engine. A variety of different port designs are simulated and scavenge characteristics compared and contrasted. The predicted CFD results are compared with measured scavenge data obtained from the QUB single-cycle scavenge rig. These results show good agreement and provide valuable insight into the effect of port design features on the scavenging process.
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Citation
Fleck, B., Fleck, R., Kee, R., Hu, X. et al., "CFD Simulation and Validation of the Scavenging Process in a 125cc 2-Stroke Racing Engine," SAE Technical Paper 2006-32-0061, 2006, https://doi.org/10.4271/2006-32-0061.Also In
References
- Jante A. Scavenging and Other Problems of Two-Stroke Spark-Ignition Engines SAE Paer No. 680468
- Blair G.P. Studying Scavenge Flow in a Two-Stroke Cycle Engine SAE Paper No. 750752
- Sammons H. A Single-Cycle Test Apparatus for Studying Loop-Scavenging in a Two-Stroke Engine Proc. I.Mech.E 160 1949 233
- Sanborn D.S. Blair G.P. Kenny R.G. Kingsbury A.H. Experimental Assessment of Scavenging Efficiency of Two-Stroke Cycle Engines SAE Paper No. 800975
- Sanborn D.S. Roeder W.M. Single Cycle Simulation Simplifies Scavenging Study SAE Paper No. 850175
- Mirko C. Pavletic R. A Model Method for the Evaluation of the Scavenging System in a Two-Stroke Engine SAE Paper No. 850176
- Sweeney M.E.G. Kenny R.G. Swann G.B.G. Blair G.P. Single Cycle Gas Testing Method for Two-Stroke Engine Scavenging SAE Paper No. 850178
- Hopkinson B. The Charging of Two-Cycle Internal Combustion Engines Trans. NE Coast Instn. Engrs. Shipbuilders 30 1914 433
- Launder B. E. Spalding D. B. Lectures in Mathematical Models of Turbulence Academic Press London, England 1972
- Issa R. I. Solution of Implicitly Discretized Fluid Flow Equations by Operator Splitting J. Comput. Phys. 62 40-65 1986