Simulations of Internal Combustion Engines

The development efficient and clean internal combustion engines requires a detailed description and a deep understanding of the flow and the chemical processes. Finite volume methods based on open-source programs are used to simulate these processes. Extensive experimental capabilities provide the basis for the validation of existing and the development of new models and numerical methods.

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Mixture fraction in a 4-valve engine, during the intake stroke

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Combustion progress in a 4-valve engine, during the power stroke.

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Progress variable source term in a 4-valve engine, during the power stroke

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LES of the flame front propagation in a SI-engine (grid 0.25 mm) on a cut through the tumble symmetry plane

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3D visualization

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Velocity contour plot on a cut through the intake valve within the intake stroke

Selected Publications

  • Janas, P., Large Eddy Simulation of In-Cylinder Phenomena in Spark Ignition Engines, PhD Thesis (2017). LINK
  • Nguyen, M. T., Large Eddy Simulation of Internal Combustion Engine with Efficient, Particle-based Moving Immersed Boundaries, PhD Thesis (2017).
  • Janas, P., Wlokas, I., Böhm, B., Kempf, A., On the evolution of the flow field in a spark ignition engine, Flow Turbul. Combust. 98:1 (2017) 237-264.
  • Nguyen, M. T, Kempf, A., Investigation of Numerical Effects on the Flow and Combustion in LES of ICE, Oil & Gas Science and Technology–Revue d’IFP Energies nouvelles 72:4 (2017), 25.
  • Nguyen, M. T., Proch, F., Wlokas, I. and Kempf, A., Large eddy simulation of an internal combustion engine using an efficient immersed boundary technique, Flow Turbul. Combust. 97:1 (2016) 191-230.
  • Janas, P., Ribeiro, M. D., Kempf, A., Schild, M., Kaiser, S. A., Penetration of the Flame Into the Top-Land Crevice-Large-Eddy Simulation and Experimental High-Speed Visualization, SAE Technical Paper (2015) 2015-01-1907.
  • Nguyen, T., Janas, P., Lucchini, T., D'Errico, G., Kaiser, S., Kempf, A., LES of Flow Processes in an SI Engine Using Two Approaches: OpenFoam and PsiPhi, SAE Technical Paper (2014) 2014-01-1121.