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首页> 外文期刊>Journal of Heat Transfer >Velocity Statistics of Plane Self-Preserving Buoyant Turbulent Adiabatic Wall Plumes
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Velocity Statistics of Plane Self-Preserving Buoyant Turbulent Adiabatic Wall Plumes

机译：平面自保持浮力湍流绝热壁羽的速度统计

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摘要

Measurements of the velocity properties of plane buoyant turbulent adiabatic wall plumes (adiabatic wall plumes) are described, emphasizing conditions far from the source where self-preserving behavior is approximated. The experiments involved helium/air mixtures rising along a smooth, plane, and vertical wall. Mean and fluctuating streamwise and cross-stream velocities were measured using laser velocimetry. Self-preserving behavior was observed 92-156 source widths from the source, yielding smaller normalized plume widths and larger near-wall mean velocities than observations within the flow develop- ment region nearer to the source.
机译：描述了平面浮力湍流绝热壁羽（绝热壁羽）的速度特性的测量，强调了远离源的近似自我保存行为的条件。实验涉及氦/空气混合物沿光滑，平面和垂直壁上升。使用激光测速仪测量平均流速和波动流速以及横流流速。在距离源头较近的流动发育区域中观察到的自保护行为在源头宽度为92-156处观察到，从而产生较小的归一化羽流宽度和较大的近壁平均速度。

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