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首页> 外文期刊>Proceedings of the Institution of Civil Engineers. Municipal Engineer >Numerical prediction of graded sediment transport
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Numerical prediction of graded sediment transport

机译：分级输沙量的数值预测

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摘要

This paper reports on the development and testing of a comprehensive unsteady flow, non-equilibrium, graded sediment transport mobile bed model for predicting river channel changes in response to engineering intervention. The theoretical background of the model is discussed and results indicating the model's performance in predicting graded sediment transport for hypothetical and flume data are presented. The hypothetical data is a slot infilling test adopted as a benchmark by other workers, whereas the flume data provides the opportunity to compare model performance with detailed measurements of bed load transport rate and size fraction mobility. Conclusions are drawn regarding the applicability of the model and the suitability of hiding functions based on statistical regression for simulating short time scale variation in observed sediment transport rate.
机译：本文报道了一种综合的非恒定流量，非平衡，分级输沙床模型的开发和测试，该模型可预测因工程干预而引起的河道变化。讨论了该模型的理论背景，并给出了表明该模型在假设和水槽数据预测坡度输沙量方面的性能的结果。假设数据是其他工人采用的基准槽填充测试，而水槽数据则提供了将模型性能与床载运速率和尺寸分数迁移率的详细测量结果进行比较的机会。得出结论，该模型的适用性和基于统计回归的隐藏函数的适用性，用于模拟观察到的沉积物运移速率的短时尺度变化。

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