基于分形理论的河床表面形态定量方法

Q3 Engineering
Yin-jun Zhou, Li Chen, Shan Chen, Lei Jiang
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引用次数: 0

摘要

提出了河床表面分形维数(BSD)来测量河床。在对表面积-尺度法表面积估算、边界处理和非尺度范围判断等方面进行改进的基础上,得到了具有不规则边界的表面分形维数计算方法,该方法在床面分形维数计算中具有较好的适用性。结合河型、河情、河流过程和BSD变化,探讨了河床表面形态的分形特征。结果表明:河床波幅随河道的变化而变化,河床波幅越大,河床波幅越大;BSD能定量地反映河床形态的复杂性,可用于河势分析、河型划分、河流阻力计算等相关问题的研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Quantity method of river bed surface form based on fractal theory
The river bed surface fractal dimension(BSD)is put forward to measure river bed.Based on improvements in some aspects of Surface area-Scale Method,such as,estimation of surface area,boundary treatment and judgment of non-scale range,the calculation method of surface fractal dimension with irregular boundary was obtained,and the new method had good applicability on the bed surface fractal dimension calculation.The fractal characteristics of river bed surface morphology were discussed by combination with river-pattern,river regime,river process and changes of BSD.The results showed that BSD could change with river process,the more severe bed form undulates,the greater BSD was.The BSD could reflect complexity of bed form quantitatively,which could be used to study some related problems,such as analysis of river regime,distinction of river pattern,calculation of river resistance and so on.
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来源期刊
应用基础与工程科学学报
应用基础与工程科学学报 Engineering-Engineering (all)
CiteScore
1.60
自引率
0.00%
发文量
2784
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