A comparison of time-stepping numerical predictions with whole-field flow measurement in breaking waves
A comparison of time-stepping numerical predictions with whole-field flow measurement in breaking waves
复制标题
破碎波中时间步进数值预测与全场流量测量的比较
DOI：
10.1007/978-94-009-0531-3_31
复制
发表时间：
1990
期刊：
影响因子：
--
通讯作者：
C. Greated
中科院分区：
文献类型：
--
作者：
D. Skyner;C. Gray;C. Greated
瞬时，全场的速度测量下的实验室产生的破碎波的波峰，并与一个完全非线性的时间步进的数值模型进行比较。在恒定水深条件下，利用数值模型生成了一个倾翻破碎体，然后在波浪水槽中通过匹配破碎前一个位置的波浪振幅时间序列来再现。波浪的产生是通过计算机控制的波浪桨和使用全场摄影技术（PIV）进行的流动测量来实现的。流的摄影记录进行了分析，在一个自动钻机和测量结果进行比较，以及与数值计算。
Instantaneous, full-field velocity measurements under the crest of a laboratory generated breaking wave are presented and compared with a fully non-linear time-stepping numerical model. A plunging breaker is generated, on constant water depth, using the numerical model, then reproduced in a wave flume by matching wave amplitude timeseries at a position just before the breaking. The generation of the waves is achieved by means of a computer controlled wave paddle and measurements of the flow made with a full-field photographic technique (PIV). The photographic records of the flow are analysed on an automatic rig and the measurements are shown to compare well with the numerical calculations.