Comparative study of turbulence models for scale-resolving simulations of internal combustion engine flows

2017 ◽  
Vol 156 ◽  
pp. 66-80 ◽  
Author(s):  
S. Buhl ◽  
F. Dietzsch ◽  
C. Buhl ◽  
C. Hasse
Keyword(s):  
Comparative Study ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Turbulence Models ◽  
Internal Combustion

On Application of Nonlinear k-ε Models for Internal Combustion Engine Flows

2002 ◽  
Vol 124 (3) ◽  
pp. 668-677 ◽  
Author(s):  
G. M. Bianchi ◽  
G. Cantore ◽  
P. Parmeggiani ◽  
V. Michelassi
Keyword(s):  
Internal Combustion Engine ◽  
Eddy Viscosity ◽  
Combustion Engine ◽  
Turbulence Models ◽  
Internal Combustion ◽  
Moment Closure ◽  
Reynolds Stresses ◽  
Mean Velocity ◽  
Numerical Predictions ◽  
Viscosity Models

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.

A Comparative Study of the Stiller-Smith and Slider-Crank Mechanisms for Eight-Cylinder Internal Combustion Engine Use

1991 ◽  
Vol 113 (3) ◽  
pp. 350-358 ◽  
Author(s):  
J. E. Smith ◽  
J. C. Smith ◽  
A. D. McKisic
Keyword(s):  
Comparative Study ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Compression Ignition ◽  
Viable Option ◽  
Compression Ignition Engines

Of the possible alternatives to the slider-crank for internal combustion engine use, the Scotch yoke in its various forms and inversions has received considerable attention. Among these, the Stiller-Smith mechanism has shown promise as being a viable option. Kinetostatic models were formulated to determine loading within similar eight-cylinder, four-stroke, compression-ignition engines with emphasis placed on comparing the number and similarity of mechanism components, implications of component and linkage motions, the loading experienced by similar bearing surfaces, and the friction losses of specific components.

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