A Large Eddy Simulation (LES) numerical study of the Partially Stratified Charge (PSC) combustion process is here proposed, carried out with the open Source code OpenFOAM, in a Constant Volume Combustion Chamber (CVCC). The solver has already been validated in previous papers versus experimental data under a limited range of operating conditions. The operating conditions domain for the model validation is extended in this paper, mostly by varying equivalence ratio, to better highlight the influence of turbulence on flame front propagation. Effects of grid sizing are also shown, to better emphasize the trade-off between the level of accuracy of turbulent vortex description, and their impact on the kinematics of flame propagation. Results show the validity of the approach that is evident by comparing numerical and experimental data.

Bartolucci, L., Cordiner, S., Mulone, V., Rocco, V., & Chan, E. (2016). Natural Gas Partially Stratified Charge Combustion: Extended Analysis of Experimental Validation and Study of Turbulence Impact on Flame Propagation. In SAE Technical Papers. SAE international [10.4271/2016-01-0596].

Natural Gas Partially Stratified Charge Combustion: Extended Analysis of Experimental Validation and Study of Turbulence Impact on Flame Propagation

Bartolucci, L;CORDINER, STEFANO;MULONE, VINCENZO;ROCCO, VITTORIO;
2016

Abstract

A Large Eddy Simulation (LES) numerical study of the Partially Stratified Charge (PSC) combustion process is here proposed, carried out with the open Source code OpenFOAM, in a Constant Volume Combustion Chamber (CVCC). The solver has already been validated in previous papers versus experimental data under a limited range of operating conditions. The operating conditions domain for the model validation is extended in this paper, mostly by varying equivalence ratio, to better highlight the influence of turbulence on flame front propagation. Effects of grid sizing are also shown, to better emphasize the trade-off between the level of accuracy of turbulent vortex description, and their impact on the kinematics of flame propagation. Results show the validity of the approach that is evident by comparing numerical and experimental data.
SAE World Congress 2016
Detroit, Michigan (US)
2016
Rilevanza internazionale
Settore ING-IND/08 - Macchine a Fluido
eng
Computational fluid dynamics; Natural gas; Engines; Combustion / Combustion processes
http://papers.sae.org/2016-01-0596/
Intervento a convegno
Bartolucci, L., Cordiner, S., Mulone, V., Rocco, V., & Chan, E. (2016). Natural Gas Partially Stratified Charge Combustion: Extended Analysis of Experimental Validation and Study of Turbulence Impact on Flame Propagation. In SAE Technical Papers. SAE international [10.4271/2016-01-0596].
Bartolucci, L; Cordiner, S; Mulone, V; Rocco, V; Chan, E
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/157067
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