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Flow modeling in an intercooler

Toporcer E.

Silniki Spalinowe

2011

R. 50, nr 3

The paper deals with the numerical modeling of charging air flow and cooling air flow in a charge air intercooler. The intercooler is air/air type and is used for the four stroke compression ignition engine with the total displacement of 7,6 l. The CATIA - CAD (Computer Aided Design) software is used for modeling of the 3D space geometrical model of the intercooler. The preprocessor Gambit is used for the creating of the needed computational mesh and the Fluent - CFD (Computational Fluid Dynamics) software is then used for the simulation itself and the postprocessing. The charge air flow in the intercooler is evaluated through the simulation results. Consequently the places with the maximum values of the velocity magnitudes for the charging air flow and the cooling air flow can be found. The simulation shows that the maximum value of velocity magnitude for the charging air flow is in the area of the intercooler inlet. The maximum value of velocity between the cooling fins is found through the simulation. Through this the information for the optimization of the intercooler can be gained. The purpose of the simulation is to use the low temperatures of charging to obtain more effective energy utilization, the decrease of the environment ecological load compared with the standard solution.