基于图像识别的非恒定流卵砾石输移试验研究
发布时间：2018-08-25 07:47
【摘要】：采用自主研发的水位、泥沙运动同步观测系统,分析相同幅度、不同周期非恒定流条件下卵砾石起动试验研究,其中水位与泥沙运动观测系统主要由相机、超声水位计组成。提出了卵石运动图像的分析方法,能够有效识别经过断面的卵石运动。初步对非恒定流条件下卵砾石输移进行研究,试验结果表明,非恒定流条件下,上升段输沙强度大于下降段输沙强度,随着周期的增加,上涨段与下降段的输沙强度差逐渐减小。
[Abstract]:The self-developed synchronous observation system of water level and sediment movement is used to analyze the initial test of gravel under the same amplitude and different periods of unsteady flow. The observation system of water level and sediment movement is mainly composed of camera and ultrasonic water level meter. The analysis method of pebble motion image is put forward, which can effectively identify the pebble movement passing through the cross section. The primary study on gravel transport under unsteady flow conditions shows that the intensity of sediment transport in rising section is greater than that in descending section under unsteady flow condition, and increases with the increase of cycle. The difference of sediment transport intensity between the rising section and the descending section is gradually decreasing.
【作者单位】： 重庆交通大学国家内河航道整治工程技术研究中心;重庆交通大学水利水运工程教育部重点实验室;
【基金】：国家自然科学基金项目(51679020) 重庆市社会民生科技创新专项(cstc2016shmszx30012) 重庆市教委科学技术研究项目(KJ1500539)
【分类号】：TV142
[Abstract]:The self-developed synchronous observation system of water level and sediment movement is used to analyze the initial test of gravel under the same amplitude and different periods of unsteady flow. The observation system of water level and sediment movement is mainly composed of camera and ultrasonic water level meter. The analysis method of pebble motion image is put forward, which can effectively identify the pebble movement passing through the cross section. The primary study on gravel transport under unsteady flow conditions shows that the intensity of sediment transport in rising section is greater than that in descending section under unsteady flow condition, and increases with the increase of cycle. The difference of sediment transport intensity between the rising section and the descending section is gradually decreasing.
【作者单位】： 重庆交通大学国家内河航道整治工程技术研究中心;重庆交通大学水利水运工程教育部重点实验室;
【基金】：国家自然科学基金项目(51679020) 重庆市社会民生科技创新专项(cstc2016shmszx30012) 重庆市教委科学技术研究项目(KJ1500539)
【分类号】：TV142
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