Abstract
In this paper the Reynolds stress structure behind multiple windbreaks across-wind is studied experimentally. The experiments were carried out in a wind tunnel which had a test section 3 m wide, 2.2 m high and 18.5 m long. The stress, u′w′ , of the flow field behind the windbreak was measured. Here u′ and w′ are the longitudinal and vertical velocity fluctuations, respectively. Quadrant analysis theory was applied to analyze the data. By partitioning the stress into ejections, sweeps, inward, and outward interactions, the results show that the Reynolds stress behind multiple windbreaks across-wind is mostly contributed by the sweep and ejection events. The difference between the fractional contributions of sweeps and ejections to the stress is shown to be well related to the third moments of u′ and w′.
Published Version
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