In this paper, an automated procedure that would help reduce the drag of a moving body was established. This is achieved through a process that determines the optimum shape of the body. This procedure reduces the analysis time for repetitive runs through automatic Computer Aided Design (CAD) model generation, CAD-CFD interfacing, and CFD (Computational Fluid Dynamics) analysis. As a case study, a set of simplified CAD models are generated as per user specifications. The CAD models are generated automatically by introducing a varying geometrical parameter on a base model. A master script exports these CAD models to a meshing package that generates the mesh for each case. A CFD package imports the meshes and identical flow parameters are applied in each case. CFD analyses are performed sequentially and the drag coefficient values are obtained. The final value of the minimum drag coefficient along with the corresponding model shape is then made available to the user.


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    Title :

    An Automated Shape Optimization Procedure for Drag Reduction of Ground Vehicles


    Additional title:

    Sae Technical Papers


    Contributors:
    Rasmi, S (author) / Venkat, S (author)

    Conference:

    International Mobility Engineering Congress & Exposition 2005 - SAE India Technology for Emerging Markets ; 2005



    Publication date :

    2005-10-23




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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