| Experimental investigation on wake profile detection based on laser scattering by bubbles |
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| 作者姓名： | 苏丽萍 赵卫疆 胡孝勇 任德明 刘西站 |
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| 作者单位： | Institute of Opto-Electronics Harbin Institute of Technology，Institute of Opto-Electronics，Harbin Institute of Technology，Institute of Opto-Electronics，Harbin Institute of Technology，Institute of Opto-Electronics，Harbin Institute of Technology，Institute of Opto-Electronics，Harbin Institute of Technology，Harbin 150080，Harbin 150080，Harbin 150080，Harbin 150080，Harbin 150080 |
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| 基金项目： | This work was supported by the Program of Excellent Team in Harbin Institute of Technology. |
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| 摘 要： | The optical system for detecting wake profiles based on laser backscattering by bubbles at 180°is reported, in which the monostatic optical geometry is adopted and the power density estimation is used to process bubble scattering signal.The profiles of wakes produced by a two-blade propeller with a diameter of 46 mm at 6000 and 8000 rpm are measured using this system.It is shown that the wake region can be identified,the wake with different shapes can be distinguished,and the fine structure within wakes can be detected.Also,the repeatability of the results is tested experimentally.Results show the feasibility of this system in wake profile detection.
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