明渠非恒定流推移质输移的实验研究

来源 :2015中国力学大会 | 被引量 : 0次 | 上传用户：ccj5310110

【摘要】

：

在实验水槽中进行了16组清水冲刷实验,以研究均匀与非均匀推移质在恒定与非恒定流条件下的输移规律.实验结果表明:在非恒定流条件下,均匀或者非均匀推移质输沙率比等水量恒定流条件下的输沙率要大;并且,床沙越粗,这种非恒定流对推移质输移的增强作用就越明显;反之亦然.另外,不管是在恒定流还是非恒定流条件下,混合床沙中的细沙都会促进粗沙的输移,而粗沙则会抑制细沙的输移;并且,这种促进/抑制作用会随着床沙中细沙

【作者】

：

李志晶钱红露曹志先 Pender Gareth 胡鹏辉

【机构】

：

武汉大学水资源与水电工程科学国家重点实验室,武汉430072;长江科学院,武汉430015 武汉大

【出处】

：

2015中国力学大会

【发表日期】

：

2015年2期

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