NUMERICAL ANALYSIS OF THE IN-CYLINDER FLOW FIELD AND COMPARISON WITH EXPERIMENTAL DATA IN A SINGLE CYLINDER RESEARCH ENGINE

Authors

  • Raphael Meireles Braga UFMG
  • Leonardo Mayer Reis UFMG
  • Leonardo Guimarães Fonseca UFMG
  • Rudolf Huebner UFMG
  • Ramon Molina Valle UFMG

DOI:

https://doi.org/10.26512/ripe.v2i31.21338

Keywords:

Turbulence. Internal Combustion Engine. Star-CD. 3D Simulation. RANS.

Abstract

In this paper, the 3D numerical analysis of the flow field in a single cylinder research engine with optical access, running cold flow, is presented. The simulations were carried out in the commercial software Star-CD with es-ICE module and the two different turbulence models: RNG-k-ε and k-w SST were compared with experimental data of the engine running at 1000 rpm in motored conditions. A grid independency study is presented using five grids varying from approximately 500,000 to 1,500,000 cells on piston bottom dead center. An optical window inside the engine cylinder was used to measure the velocity components along the crank angle with the PIV technique and a comparison was made with calculated velocity curves. Moreover, a qualitative analysis of the scalar flow field in the region of interest is presented. The results showed a better agreement with the RNG-k-ε and experimental mean velocity magnitude curve than k-ω-SST. However, the qualitative scalar velocity field of the k-ω model captured more details of the flow than the k-ε model.

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References

Aita, S.; Tabbal, A.; Munck, G.; Montmayeur, N.; Takenaka, Y.; Aoyagi, Y.; Obana, S. Numerical simulation of swirling port-valve-cylinder flow in diesel engines, SAE technical paper N. 910263, Warrandale, 1991.

Chen, A.; Veshagh, A.; Wallace, S. Intake predictions of a transparent DI diesel engine. SAE technical paper N. 981020, Warrandale, 1998.

Choi, K. H.; Park, J. H.; Lee, N. H.; Yu, C. H.; Noh, S. H., A research on fuel spray and air fields for spark-ignited direct injection using laser measurement technology. SAE technical paper N. 1999-01-0503, Warrandale, 1999.

Fansler, T. D.; French, D. T. Cycle-resolved laser-velocimetry measurements in a reentrant-bowl-in-piston engine. SAE technical paper N 880377, 1988.

Gomes, C., da Costa, R., Franco, R., Valle, R. et al., "PIV Measurements of In-Cylinder Tumble Flow in a Motored Single Cylinder Optical Research Engine," SAE Technical Paper 2015-36-0305, 2015.

Hill, P. G.; Zhang, D.The effect of swirl and tumble on combustion in spark ignition engines, Prog. Energy Combust. Sci., 20:373-429, 1994.

Kurniawan, W. H.; Abdullah, S.; Shamsudeen, A.A computational fluid dynamics study of cold-flow analysis for mixture preparation in a motored four-stroke direct injection engine.Journal of applied sciences 7 (19), pp. 2007-2724, 2007.

Lee, K. C., Hill, N. S., Asadamongkon, P., & Strand, L. W. A study of turbulence and cyclic variation levels in internal combustion engine cylinders. Proceedings of the 10th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Paper. Vol. 22., 2000.

Le Coz, J. F.; Henriot, S.; Pinchon, P.An experimental and computational analysis of the flow field in a four-valve spark engine ”“ focus on cycle-resolved turbulence. SAE technical paper N. 900056, Warrandale, 1990.

Li, Y.; Zhao, H.; Peng, Z.; Ladommatos, N. Analysis of tumble and swirl motions in a four valve si engine. SAE technical paper N. 2001-01-3555, Warrandale, 2001.

Lumley, J. L. Engines ”“ an introduction. Cambridge Univesity Press, 1999.

Marc, Daniel, et al. Tumbling vortex flow in a model square piston compression machine: PIV and LDV measurements. No. 972834. SAE Technical Paper, 1997.

Menter, F. R. (1994), "Two-Equation Eddy-Viscosity Turbulence Models for Engineering Applications", AIAA Journal, vol. 32, no 8. pp. 1598-1605.

Payri, F.; Benajes, J.; Margot, X.; Gil, A. CFD modeling of the in-cylinder flow in direct injetion diesel engines.Elsevier: Computer &Fluids 33 (2004) 995-1021. doi:10.1016/j.compfluid.2003.09.003.

ANFAVEA, “Produção, vendas e exportação de autoveículos. Associação Nacional dos Fabricantes de Veículos Automotores”, Associação Nacional dos Fabricantes de Veículos Automotores (ANFAVEA). Available at http://www.anfavea.com.br/. Access in Oct. 2014.

Qi, Y.L.; Dong, L.C.; Liu, H.; Puzinauskas, P.V. And Midkiff, K.C. Optimization of intake port design for SI engine.International Journal of Automotive Technology, Vol. 13, No. 6, p. 861-872, 2012.

Reuss, D. L., and M. Rosalik. PIV measurements during combustion in a reciprocating internal combustion engine. Laser Techniques Applied to Fluid Mechanics. Springer Berlin Heidelberg, 2000. 441-456.

Rouland, E.; Trinite, M.; Dionnet, F.; Floch, A.; Ahmed, A. Particle image velocimetry measurements in a high tumble engine for in-cylinder flow structure analysis. SAE technical paper N. 972831, Warrandale, 1997.

Toh H.; Huang, R.; Lin, K. E Chern, M.J. Computational Study on the Effect of Inlet Port Configuration on In-Cylinder Flow of a Motored Four-Valve Internal Combustion Engine. Journal of Energy Engineering, Vol. 137, pp. 198-206, 2011.

Versteeg H. K., Malalasek-εra W. “An introduction to computational fluid Dynamics”. 2ª ed. Pearson Prentice-Hall. 2009. 517p.

Yakhot, V., Orszag, S.A., Thangam, S., Gatski, T.B. & Speziale, C.G. (1992), "Development of turbulence models for shear flows by a double expansion technique", Physics of Fluids A, Vol. 4, No. 7, pp1510-1520.

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Published

2017-02-16

How to Cite

Braga, R. M., Reis, L. M., Fonseca, L. G., Huebner, R., & Valle, R. M. (2017). NUMERICAL ANALYSIS OF THE IN-CYLINDER FLOW FIELD AND COMPARISON WITH EXPERIMENTAL DATA IN A SINGLE CYLINDER RESEARCH ENGINE. Revista Interdisciplinar De Pesquisa Em Engenharia, 2(31), 270–285. https://doi.org/10.26512/ripe.v2i31.21338