The linear k-ε model, in its different formulations, still remains the most widely used turbulence model for the solutions of internal combustion engine (ICE) flows thanks to the use of only two scale-determining transport variables and the simple constitutive relation. This paper discusses the application of nonlinear k-ε turbulence models for internal combustion engine flows. Motivations to nonlinear eddy viscosity models use arise from the consideration that such models combine the simplicity of linear eddy-viscosity models with the predictive properties of second moment closure. In this research the nonlinear k-ε models developed by Speziale in quadratic expansion, and Craft et al. in cubic expansion, have been applied to a practical tumble flow. Comparisons between calculated and measured mean velocity components and turbulence intensity were performed for simple flow structure case. The effects of quadratic and cubic formulations on numerical predictions were investigated too, with particular emphasis on anisotropy and influence of streamline curvature on Reynolds stresses.
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July 2002
Technical Papers
On Application of Nonlinear k-ε Models for Internal Combustion Engine Flows
G. M. Bianchi,
G. M. Bianchi
Department of Mechanical Engineering, Diem–University of Bologna, Viale Risorgimento 2, Bologna 40136, Italy
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G. Cantore,
G. Cantore
Department of Mechanical Engineering, University of Modena, Via Vignolese 905, Modena 41100, Italy
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P. Parmeggiani,
P. Parmeggiani
Department of Mechanical Engineering, University of Modena, Via Vignolese 905, Modena 41100, Italy
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V. Michelassi
V. Michelassi
Department of Mechanical and Industrial Engineering, University of Roma Tre, Via di tor Vergata, Rome 00100, Italy
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G. M. Bianchi
Department of Mechanical Engineering, Diem–University of Bologna, Viale Risorgimento 2, Bologna 40136, Italy
G. Cantore
Department of Mechanical Engineering, University of Modena, Via Vignolese 905, Modena 41100, Italy
P. Parmeggiani
Department of Mechanical Engineering, University of Modena, Via Vignolese 905, Modena 41100, Italy
V. Michelassi
Department of Mechanical and Industrial Engineering, University of Roma Tre, Via di tor Vergata, Rome 00100, Italy
Contributed by the Internal Combustion Engine Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received by the ICE Division, July 1999; final revision received by the ASME Headquarters, August 2001. Editor: D. N. Assanis.
J. Eng. Gas Turbines Power. Jul 2002, 124(3): 668-677 (10 pages)
Published Online: June 19, 2002
Article history
Received:
July 1, 1999
Revised:
August 1, 2001
Online:
June 19, 2002
Citation
Bianchi, G. M., Cantore , G., Parmeggiani, P., and Michelassi, V. (June 19, 2002). "On Application of Nonlinear k-ε Models for Internal Combustion Engine Flows ." ASME. J. Eng. Gas Turbines Power. July 2002; 124(3): 668–677. https://doi.org/10.1115/1.1454115
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