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1965年,美国加利福尼亚大学L.AZadeh教授首先提出了模糊集合(Fuzzy Sets),创立了模糊数学——研究和处理模糊性现象的不确定性数学。所谓模糊性,其根源在于客观事物的差异之间存在中间过渡,存在着亦此亦彼的现象。由于近岸波浪、海流的多变性,泥沙往往又不是单一的来源及单一的运移方向。所以底质样品之间存在差异,存在亦此亦彼的模糊现象,这种现象就是笔者在沿岸漂沙研究中尝试处理模糊信息而应用模糊数学之基础。本文以粤东碣石湾东岸碣石潟湖口外近岸泥沙运移问题为例,应用模糊数学去探讨沿岸漂沙的主要方向。
In 1965, Prof. L. Zadeh of the University of California, Los Angeles, first proposed Fuzzy Sets to create fuzzy mathematics - a mathematical study of uncertainties that deals with the ambiguity phenomenon. The so-called ambiguity, the root cause is the existence of an intermediate transition between the difference of objective things, there are also the phenomenon of this also. Due to the variability of coastal waves and currents, sediment is often not a single source and a single direction of migration. So there are differences between the sediment samples, there are also fuzzy phenomenon, this phenomenon is the author in the coastal drift sediment research trying to deal with fuzzy information and the application of fuzzy mathematics. In this paper, the sediment transport near the Shi Shui Lagoon estuary on the east coast of Tieshwan in East Guangdong Province is taken as an example. The main direction of the coastal drift sediment is discussed by using fuzzy mathematics.