10th Symposium "The Working Process of the Internal Combustion Engine"
Progress in the 3D-CFD Calculation of Gas- and Water-Side Heat Transfer in IC-Engines
Authors
A. Brohmer, J. Mehring, Ford Werke GmbH, Köln, J. Schneider, B. Basara, R. Tatschl, AVL List GmbH, Graz, K. Hanjalic, M. Popovac, Delft University of Technology
Year
2005
Summary
The realistic modelling of wall-heat transfer in 3D-CFD is a necessary prerequisite for the accurate calculation of IC-engine related flow and combustion processes, and for providing reliable boundary conditions for components thermal analysis. Regarding the predictive capabilities and universality of turbulent heat transfer models it turns out that the currently adopted models are not sufficiently accurate to fully satisfy present and future demands. The present article focuses on the development of advanced models for turbulence and turbulent wall-heat transfer suitable for engine applications. Verification of the models is achieved for idealised flow configurations via comparison of calculated results with experimental and LES-data. The applicability of the newly developed models to engine development related calculation tasks is demonstrated for the water- and gas-side heat transfer in a modern state-of-the-art 4-valve gasoline engine.
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