• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Numerical and experimental studies in prediction of bed levels of aggrading channels
【24h】

Numerical and experimental studies in prediction of bed levels of aggrading channels

机译：预测床径频道预测的数值和实验研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A semi-coupled 1D numerical model is presented to compute transient bed and water levels of aggrading channels due to the overloading of sediments. The numerical model solves mass and momentum equations (i.e. de Saint-Venant equations) for water and continuity equations for sediments simultaneously, using explicit finite difference scheme while considering upstream and downstream boundary conditions in the channel. Series of experimental studies are reported for measurements of bed and water levels in an aggrading channel due to the overloading of uniform sediments, in a flume installed at the Advanced Hydraulics Laboratory of SVNIT. The performance of bed level variation models, with different sediment transport functions, has been validated using the laboratory measurements. The performance of the numerical model is dependent on sediment transport functions. In addition, the performance of the proposed numerical model has been verified with existing numerical models on prediction of bed level variations. The proposed numerical model with recommended sediment transport function has been found to perform better than the existing numerical models on bed level variations of uniform sediment beds.
机译：提出了一种半耦合的1D数值模型，以计算由于沉积物过载引起的瞬态床和水平的加重通道。数值模型在考虑通道中的上游和下游边界条件的同时，解决了对沉积物的水和连续性方程（即de saint-venant方程）的水和连续性方程，同时考虑了通道的上游和下游边界条件。据报道，由于均匀沉积物的过载，在安装在SVNIT的先进水力实验室的水槽中，据报道了一系列实验研究。使用实验室测量验证了床级变化模型的性能，具有不同的沉积物传输功能。数值模型的性能取决于沉积物传输功能。此外，已经用现有的数值模型来验证了所提出的数值模型的性能，以预测床位变化。已经发现具有推荐沉积物运输功能的提出的数值模型比均匀沉积物床的床级变化的现有数值模型更好。

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