The Effect of Turbulence Model Variation on Flame Propagation in a Particular 4-Valve Engine Combustion Chamber
Апстракт
In this paper some initial results concerning the evolution of flame propagation in 4-valve engines with tilted valves were presented. Results were obtained by dint of multidimensional modeling of reactive flows in arbitrary geometry with moving boundaries. During induction fluid flow pattern was characterized with organized tumble motion followed by small but clearly legible deterioration in the vicinity of BDC. During compression the fluid flow pattern is entirely three-dimensional and fully controlled by vortex motion located in the central part of the chamber. The effect of turbulence model variation on flame propagation was tackled as well. Namely, some results obtained with eddy-viscosity model i.e. standard k-epsilon model were compared with results obtained with k-xi-f model of turbulence in domain of 4-valve engine in-cylinder flow. Some interesting results emerged rendering impetus for further quest in the near future. In the case of combustion all differences ensuing from tu...rbulence model variation, encountered in the case of non-reactive flow were annihilated entirely. Namely the interplay between fluid flow pattern and flame propagation is invariant as regards both turbulence models applied.
Кључне речи:
Computational Fluid Dynamics (CFD) / Automotive Flows / Turbulence ModelingИзвор:
AIP Conference Proceedings, 2012, 1499, 404-409Напомена:
- 6th Global Conference on Power Control and Optimization, Aug 06-08, 2012, Las Vegas, NV
DOI: 10.1063/1.4769021
ISSN: 0094-243X
WoS: 000312409000060
Scopus: 2-s2.0-84873828979
Колекције
Институција/група
VinčaTY - CONF AU - Jovanović, Zoran S. AU - Masoničić, Zoran PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6989 AB - In this paper some initial results concerning the evolution of flame propagation in 4-valve engines with tilted valves were presented. Results were obtained by dint of multidimensional modeling of reactive flows in arbitrary geometry with moving boundaries. During induction fluid flow pattern was characterized with organized tumble motion followed by small but clearly legible deterioration in the vicinity of BDC. During compression the fluid flow pattern is entirely three-dimensional and fully controlled by vortex motion located in the central part of the chamber. The effect of turbulence model variation on flame propagation was tackled as well. Namely, some results obtained with eddy-viscosity model i.e. standard k-epsilon model were compared with results obtained with k-xi-f model of turbulence in domain of 4-valve engine in-cylinder flow. Some interesting results emerged rendering impetus for further quest in the near future. In the case of combustion all differences ensuing from turbulence model variation, encountered in the case of non-reactive flow were annihilated entirely. Namely the interplay between fluid flow pattern and flame propagation is invariant as regards both turbulence models applied. C3 - AIP Conference Proceedings T1 - The Effect of Turbulence Model Variation on Flame Propagation in a Particular 4-Valve Engine Combustion Chamber VL - 1499 SP - 404 EP - 409 DO - 10.1063/1.4769021 ER -
@conference{ author = "Jovanović, Zoran S. and Masoničić, Zoran", year = "2012", abstract = "In this paper some initial results concerning the evolution of flame propagation in 4-valve engines with tilted valves were presented. Results were obtained by dint of multidimensional modeling of reactive flows in arbitrary geometry with moving boundaries. During induction fluid flow pattern was characterized with organized tumble motion followed by small but clearly legible deterioration in the vicinity of BDC. During compression the fluid flow pattern is entirely three-dimensional and fully controlled by vortex motion located in the central part of the chamber. The effect of turbulence model variation on flame propagation was tackled as well. Namely, some results obtained with eddy-viscosity model i.e. standard k-epsilon model were compared with results obtained with k-xi-f model of turbulence in domain of 4-valve engine in-cylinder flow. Some interesting results emerged rendering impetus for further quest in the near future. In the case of combustion all differences ensuing from turbulence model variation, encountered in the case of non-reactive flow were annihilated entirely. Namely the interplay between fluid flow pattern and flame propagation is invariant as regards both turbulence models applied.", journal = "AIP Conference Proceedings", title = "The Effect of Turbulence Model Variation on Flame Propagation in a Particular 4-Valve Engine Combustion Chamber", volume = "1499", pages = "404-409", doi = "10.1063/1.4769021" }
Jovanović, Z. S.,& Masoničić, Z.. (2012). The Effect of Turbulence Model Variation on Flame Propagation in a Particular 4-Valve Engine Combustion Chamber. in AIP Conference Proceedings, 1499, 404-409. https://doi.org/10.1063/1.4769021
Jovanović ZS, Masoničić Z. The Effect of Turbulence Model Variation on Flame Propagation in a Particular 4-Valve Engine Combustion Chamber. in AIP Conference Proceedings. 2012;1499:404-409. doi:10.1063/1.4769021 .
Jovanović, Zoran S., Masoničić, Zoran, "The Effect of Turbulence Model Variation on Flame Propagation in a Particular 4-Valve Engine Combustion Chamber" in AIP Conference Proceedings, 1499 (2012):404-409, https://doi.org/10.1063/1.4769021 . .