...
首页> 外文期刊>Coastal engineering >Optical measurements of tsunami inundation through an urban waterfront modeled in a large-scale laboratory basin
【24h】

Optical measurements of tsunami inundation through an urban waterfront modeled in a large-scale laboratory basin

机译:通过大型实验室盆地建模的城市滨水区海啸淹没的光学测量

获取原文
获取原文并翻译 | 示例
           

摘要

This paper presents optical measurements of tsunami inundation through an urban waterfront in a laboratory wave basin. The physical model was constructed at 1:50 scale and was an idealization of the town of Seaside, Oregon. The fixed-bed model was designed to study the initial inundation zone along an urban waterfront, such that the flow around several large buildings could be observed. This paper presents an analysis of the optical measurements made with two overhead video cameras, focusing on tracking the leading edge of the tsunami inundation through the urban waterfront and quantifies the accuracy of the algorithm used to track the edge. The results show that the methodology provides high-resolution information in both time and space of the leading edge position, and that these data can be used to quantify the influence of large macro-roughness features on the tsunami inundation processes in laboratory settings. The overall effect of the macro-roughness was to decrease the bore propagation speed relative to the control section with no macro-roughness. The bore speed could be reduced by as much as 40% due to the presence of the macro-roughness relative to the control section.
机译:本文介绍了通过实验室波浪盆地中的城市滨水区进行的海啸淹没的光学测量。物理模型是按1:50比例构建的,是俄勒冈州锡赛德镇的理想化模型。设计固定床模型是为了研究沿城市滨水区的初始淹没区,以便可以观察到几座大型建筑物周围的水流。本文介绍了对使用两台高架摄像机进行的光学测量的分析,重点是跟踪穿过城市滨水区的海啸泛滥的前沿,并量化了用于跟踪边缘的算法的准确性。结果表明,该方法可在前沿位置的时间和空间中提供高分辨率信息,并且这些数据可用于量化大型宏观粗糙度特征对实验室环境中海啸淹没过程的影响。相对于没有宏观粗糙度的控制部分,宏观粗糙度的总体效果是降低了孔的传播速度。由于存在相对于控制部分的宏观粗糙度,镗孔速度可降低多达40%。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号