1991-11-01

Numerical Simulation for the Flow around a Car-like Bluff Body 912575

This report shows and estimates some results of the numerical simulation for the flow around a bluff body which is a simplified model of automobile with the slanted rear window. The calculating code adopts a k-ε turbulence model and a finite volume method (FVM) on the body fitted grid system. An effective algorythm based on the SIMPLE method enables the calculations performed within small CPU time. A validation of the simulation results is discussed from the comparison to the experimental data, especially about the prediction of the three-dimensional flow separations behind the rear window and the pressure drag.

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