• numerical simulation of flow over two circular cylinders in tandem arrangement

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 584
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     in this article, the 2-d unsteady viscous flow around two circular cylinders in a tandem arrangement is numerically simulated in order to study the characteristics of the flow in both laminar and turbulent regimes. the method applied alternatively is based on the finite volume method on a cartesian-staggered grid. the great source term technique is employed to identify the cylinders placed in the flow field. to apply the boundary conditions, the ghost-cell technique is used. the implemented computational method is firstly validated through simulation of laminar and turbulent flows around a fixed circular cylinder. finally, the flow around two circular cylinders in a tandem arrangement is simulated and analyzed. the flow visualization parameters, the strouhal numbers, and drag and lift coefficients are comprehensively presented and compared for different cases in order to reveal the effect of the reynolds number and gap spacing on the behavior of the flow. the obtained results have shown two completely distinct flow characteristics in laminar and turbulent regimes.

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