20306 非平衡自由せん断乱流場における速度・圧力の同時計測(流れの計測と制御(1),OS6 流れの計測と制御)

概要

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Simultaneous measurements of fluctuating velocity and pressure were carried out in developing region of a turbulent mixing layer. A miniature probe for fluctuating static pressure was combined with X-wires hot-wire anemometer to evaluate velocity-pressure correlation at arbitrary location. To capture the contribution of largest motion of the flow, the spatial resolution, which is actually the distance between velocity- and pressure- probes, is required to be the same as integral length scale of the flow. It is also valid to check cross-spectrum coherence and phase at the dominant frequency of large scale motion. It is found that the results which satisfy the criteria coincide well with the DNS result.
一般社団法人日本機械学会の論文
2006-03-09