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Experimental investigation of axisymmetric turbulent boundary layers

机译：轴对称湍流边界层的实验研究

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Measurements of the turbulent boundary layer over an experimental towed array were made at the David Taylor Model Basin, Naval Surface Warfare Center Carderock Division using a stationary stereo- particle image velocimetry (SPIV) system. Data were collected at discrete transverse planes along the length of the array at tow speeds between 6.2 and 15.4 m/s. The corresponding momentum thickness Reynolds numbers Reθ varied from 4.8 × 105 to 1.1 × 106. This range is representative of values occurring in Navy applications and is much greater than those typically achieved in laboratory or with computational investigations. Instantaneous three-dimensional velocity fields and profiles have been published by the authors. However, the streamwise growth of the boundary layer and the variation with speed were not determined. The goal of this analysis is to provide additional insight into the development of axisymmetric boundary layers over long lengths and at moderate to high Reynolds numbers.
机译：使用固定的立体粒子图像测速（SPIV）系统，在海军表面作战中心卡德洛克分校的大卫泰勒模型盆地对实验拖曳阵列上的湍流边界层进行了测量。沿阵列长度在离散横向平面上以6.2至15.4 m / s的牵引速度收集数据。相应的动量厚度雷诺数Re θ在4.8×10 5 到1.1×10 6 之间变化。这个范围代表了海军应用中出现的值，并且比实验室或计算机研究中通常获得的值大得多。作者已经发布了瞬时三维速度场和轮廓。但是，尚未确定边界层的沿河方向生长和随速度的变化。该分析的目的是提供对较长长度且中等至高雷诺数的轴对称边界层发展的更多见解。

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