Abstract:Multi-scale generated turbulent flows are observed to possess some remarkable features, such as the rapid spreading of forest fires. Here, for simplicity, we consider the flow past a two-dimensional multi-scale arrangement of bars of various thicknesses in which wakes of different characteristic sizes and frequencies interact. We apply a novel multi-scale triple decomposition on the velocity field in order to distinguish between the mean flow, coherent fluctuations of various characteristic frequencies (associ… Show more
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