Discharge estimation in small irregular river using LSPIV
Discharge estimation in small irregular river using LSPIV
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DOI：
10.1680/wama.2010.163.5.247
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
Xin Sun;K. Shiono;J. Chandler;P. Rameshwaran;R. Sellin;I. Fujita
中科院分区：
文献类型：
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作者：
Xin Sun;K. Shiono;J. Chandler;P. Rameshwaran;R. Sellin;I. Fujita
本文报道了一种利用大尺度粒子图像测速仪(LSPIV)对黑水河小型不规则河道流量进行定量估算的方法。试验河段(250m×60m)由较直的多条曲流河组成，河堤深度为0.90m，底宽为4.25m，利用LSPIV测量了沿河三个断面的水面流速。为了验证LSPIV的水面速度，还两次使用了声学多普勒测速仪(ADV)测量速度剖面。除了这项实地工作外，还提供了来自1：5河流物理模型的流速数据，以与现场数据进行比较。将LSPIV数据与ADV数据进行了比较，得到了一致的结果。建议采用流量修正系数法估算河道流量。提出了内流和溢流的流量修正系数分别为0·90~1·05和1·10-1·15。
This paper reports on an estimation method used to quantify discharge in the small irregular channel of the River Blackwater, using large-scale particle image velocimetry (LSPIV). The test reach (250 m × 60 m) consists of relatively straight and multiple meander channels, with a bankfull depth of 0·90 m and a base width of 4·25 m. Water surface velocities were measured by LSPIV at three sections along the river. Acoustic Doppler velocimeter (ADV) was also used on two occasions to measure velocity profiles for the validation of water surface velocities of LSPIV. In addition to this field work, velocity data derived from a 1:5 physical model of the river were available to compare with the field data. A comparison between the LSPIV data and ADV data was made and agreement was confirmed. The discharge correction factor method was suggested to estimate the discharge in the river. Discharge correction factors of 0·90–1·05 and 1·10–1·15 were proposed for inbank and overbank flow conditions respectively.