• cfd-based atmospheric dispersion modeling in real urban environments

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 856
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the process of cfd model application for atmospheric dispersion modeling is presented. increasing the cpu power opens new possibilities of the cfd approach application for consequence analysis in real complex urban environments. as successful cfd simulation is directly dependent on the quality and complexity of the computational mesh, a new methodology of transferring the geographic information system (gis) data to the computational mesh can be utilized. a user software for importing and manipulation with the gis data and their subsequent transfer to an instructional file for the generation of the computational mesh was prepared and tested. the introduced methodology is relatively simple and it requires only a small amount of input data. the process of creating a computational mesh is very straightforward and fast, which enables the application of cfd modeling in urban environments in all fields of engineering applications in safety analysis. several recommendations concerning proper definition of boundary conditions for atmospheric dispersion modeling were summarized. the presented approach was tested on a realistic case study of liquefied chlorine release in a real town. results obtained by the cfd approach were compared with those obtained by a simpler but standard integral model.

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