FLOW AND HYDRODYNAMIC FORCE DISTRIBUTIONS OF SUBMERSED GROINS FOR DIFFERENT GROIN ANGLES
FLOW AND HYDRODYNAMIC FORCE DISTRIBUTIONS OF SUBMERSED GROINS FOR DIFFERENT GROIN ANGLES
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不同腹股沟角度的浸没腹股沟的流动和流体动力分布
DOI：
10.2208/prohe.48.811
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
A. Watanabe
中科院分区：
文献类型：
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作者：
H. Kawaguchi;S. Fukuoka;A. Watanabe
丁坝主要用于弯道，以保护河岸免受侵蚀。通过室内试验、数值分析和现场观测，对丁坝布置方式进行了研究。丁坝通常设置成直角或朝向上游，因为在这些布置中，下游防止了冲刷，丁坝之间发生泥沙淤积。另一方面，丁坝材料的重量要足够大，不能被冲刷掉。本文通过实验和三维数值模型，讨论了不同丁坝倾角下的水流和水动力分布，以及合适的丁坝倾角。
Groins are mainly used in curved channels to protect river bank against erosion. Arrangement of the groins has been investigated through laboratory experiments, numerical analysis and field observation in river. The groins are often set up at right angle or toward upstream from bank, because scouring is prevented in the downstream and sediment deposition occurs between the groins in these arrangements. On the other, it is important that the weight of groin materials is enough not so as to be washed away.In this paper, flow and hydrodynamic force distributions for different groin angles accessed by experiments and 3-D numerical flow model and suitable groin angle is discussed.