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1 Journal of KONES

1 2010

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Intercooler for extremely low temperatures of charging

Toporcer E., Tučnik P., Cisek J.

Journal of KONES

2010

Vol. 17, No. 4

529-536

The paper deals with the optimization of the charge air intercooler of the turbocharged internal combustion engine with the focus on the extremely low temperatures of charge air. The software Fluent is used for the numerical simulation (CFD - Computational Fluid Dynamics) of the charge air flow. The 3 D space geometrical model of the charge air intercooler is created in the CAD (Computer Aided Design) software CATIA. The model is simplifled according to the requirements of the computational mesh creation and numerical simulation. The model is then exported as the iges file and this file is subsequently imported into the preprocessor Gambit. The imported model is repaired and a suitable mesh is then created according to the computational means properties. The last step is the definition of the types of boundary conditions. The needed types of boundary conditions are applied to the single surfaces and volumes. The completed computational mesh is then exported from Gambit and imported into the CFD software Fluent for numerical simulation. The needed values of parameters are used for the calculation definition and the simulation is started. The simulation results show the charge air flow in the charge air cooler and the places with the maximum values of turbulences can be found and this information can be the input for the optimization design of the mentioned cooler.