Experimental and numerical studies on the morphological similarity of debris-flow fans

被引:3
作者
Tsai, YF
Shieh, CL
机构
[1] Department of Hydraulics and Ocean Engineering, National Cheng Kun University, Tainan
关键词
debris flow; debris-flow fan; morphological similarity; numerical simulation; experimental study;
D O I
10.1080/02533839.1997.9741872
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The morphological similarity of debris-flow fans is found in this study by using a series of laboratory experiments and numerical simulations. The length of the center line(L-c), maximum width(B-m) and thickness of the apex point(Z(o)) of debris-flow fans are adopted as the characteristic parameters to analyze the morphological similarity of the debris-flow fans in this study. The experimental and numerical results showed that the non-dimensional longitudinal and cross sectional profiles of debris-flow fans in the ''stable stage'' can be described by Gaussian functions, while the non-dimensional plan form of the debris-flow fans is well fitted by a circular curve. By combining the three non-dimensional curves mentioned above; the total volume and the 3-D morphological function of debris-flow fans can be easily derived.
引用
收藏
页码:629 / 642
页数:14
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