EMPIRICAL-NUMERICAL ANALYSIS OF HEADCUT MIGRATION

Headcut migration is studied by using empirical and numerical modeling approaches. Empirical formulas for the headcut migration are established using available measurement data, which consider not only the flow strength but also the properties of soil. Numerical model for the headcut migration is proposed. The influences of dynamic pressure gradient, downward flow, and bed slope on sediment entrainment are considered. The local erosion patterns and migration speeds of headcut calculated by the numerical model agree reasonably well with observed data.

作 者： W. WU S. S. Y. WANG   作者單位： National Center for Computational Hydroscience and Engineering, University of Mississippi, University, MS 38677, USA  刊 名： 國(guó)際泥沙研究（英文版）  SCI 英文刊名： INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH  年，卷(期)： 2005 20(3)  分類號(hào)： P3  關(guān)鍵詞： Headcut migration   Empirical formula   Numerical model  

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