In English

Predictions of the Flow in the Intake Port of an Engine Using LES and PANS

Tobias Eidevåg ; Martin Lindström
Göteborg : Chalmers tekniska högskola, 2013. Diploma work - Department of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, ISSN 1652-8557; 2013:65, 2013.
[Examensarbete på avancerad nivå]

The airflow in the cylinder of a car engine is simulated using three different techniques. Large Eddy Simulations (LES), Partially Averaged Navier-Stokes (PANS) and Reynolds Averaged Navier-Stokes (RANS). The simulations are compared with experimental data from BMW and a benchmark designed by BMW, executed by AVL List GmbH among others. A comparison and evaluation between the three different turbulence models is made, especially differences in flow physics. The study focuses on evaluting PANS for this complex geometry as well as understanding the tumble creation in the cylinder. The computational mesh was created using ANSYS ICEM CFD and the simulations were performed with AVL FIRE.

Nyckelord: Computational Fluid Dynamics (CFD), AVL FIRE, ICEM CFD, Partially Averaged Navier-Stokes (PANS), Large Eddy Simulation (LES), Intake Port, Turbulence model



Publikationen registrerades 2015-07-06. Den ändrades senast 2015-12-10

CPL ID: 219501

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