Development and Evaluation of a Numerical Simulation Strategy Designed to Support the Early Stages of the Aerodynamic Development Process

T. Breitling; E. Jehle; H. Reister; V. Schwarz

doi:10.4271/2002-01-0571

2002-03-04

Development and Evaluation of a Numerical Simulation Strategy Designed to Support the Early Stages of the Aerodynamic Development Process 2002-01-0571

In order to fulfill the need for an efficient and reliable computational method for the aerodynamic optimization of passenger cars, a numerical simulation strategy has been developed at DaimlerChrysler in Stuttgart. The simulation strategy consists of surface preparation, three dimensional mesh generation, flow simulation using CFD, and post-processing. The method will be applied mainly in the early concept phase of the development process when 1:4 scale models with smooth underbodies are used. In this study SAE-bodies as well as modifications of real car shapes are presented. The paper also discusses which improvements are needed to establish a mainly CFD-based process in the early concept phase.

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Development and Evaluation of a Numerical Simulation Strategy Designed to Support the Early Stages of the Aerodynamic Development Process 2002-01-0571

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