A NEW METHOD FOR MEASURING AND CALCULATING THREE-DIMENSIONAL FLOWS AND BED FORMS AROUND RIVER BANKS
A NEW METHOD FOR MEASURING AND CALCULATING THREE-DIMENSIONAL FLOWS AND BED FORMS AROUND RIVER BANKS
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河岸三维流量和床形测量计算新方法
DOI：
10.2208/jscejhe.69.i_1171
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发表时间：
2013
影响因子：
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通讯作者：
S. Fukuoka
中科院分区：
文献类型：
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作者：
M. Koshiishi;T. Uchida;S. Fukuoka
利用ADCP（Acoustic Doppler Current Profiler）技术，对江原道护岸工程的三维水流结构和床面形态进行了详细的观测。在本方法中，针对速度和床剖面来管理用于电流剖面的单个射束数据。本文通过现场试验，提供了详细的流速分布和床面形态资料。提出了基于水深积分模型的三维水流结构数值分析方法。通过与实验测得的速度分布的比较，我们证明了分析方法的准确性。结果表明，采用新的量测与计算方法相结合，可以较好地了解陡流速梯度水流冲击区和护岸局部冲刷区的三维水流结构。
Detailed profiles of three-dimensional flow structures and bed-forms using a new ADCP (Acoustic Doppler Current Profiler) method was developed for flow attacking on a revetment in the full scale experiment in the Jyoganji River. In the present method, individual beam data for current profiling is managed for velocity and bed profiles. This paper supplies detailed data of velocity distributions and bed forms by the field experiment. And, we proposed a numerical analysis method for the local threedimensional flow structure around the revetment using bottom velocity computation method based on a depth integrated model. We demonstrated the accuracy of the analytical method through the comparison with velocity distributions measured by the experiment. Furthermore, the results demonstrated that combined use of the new measuring and calculating method was reliable to understand three-dimensional flow structures in flow attacking zones with steep velocity gradients and local scouring around revetments.