Simulation of the Flow past a Circular Cylinder Using an Unsteady Panel Method

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    Abstract

    In the present work, an in-house UnSteady Double Wake Model (USDWM) is developed for simulating general flow problems behind bodies. The model is presented and used to simulate flows past a circular cylinder at subcritical, supercritical, and transcritical flows. The flow model is a two-dimensional panel method which uses the unsteady double wake technique to model flow separation and its dynamics. In the present work the separation location is obtained from experimental data and fixed in time. The highly unsteady flow field behind the cylinder is analyzed in detail. The results are compared with experiments and Unsteady Reynolds-Averaged Navier Stokes (URANS) simulations and show good agreement in terms of the vortex shedding characteristics, drag, and pressure coefficients for the different flow regimes.
    Original languageEnglish
    JournalApplied Mathematical Modelling
    Volume44
    Pages (from-to)206-222
    ISSN0307-904X
    DOIs
    Publication statusPublished - 2017

    Keywords

    • Circular cylinder
    • Unsteady flow
    • Panel method
    • Vortex method
    • URANS

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