The calculation result indicates that for a given starting condition, the coefficient is not a constant, but varies with the relative exposure degree of grain.
结果表明,在起动状态一定时,该系数并非为一个常量,而是介于某个区间,且随颗粒在床面上的相对暴露度的变化而变。
The formula for calculating the incipient motion condition of non-uniform sediment has been established by considering the equivalent grain and the relative exposure degree.
阐述了泥沙起动机理,通过对等效粒径概念及表达式的引入,推得了泥沙起动公式。
The formula shows the transport rate is not a constant but varies with the relative exposure degree of particles that lying on riverbed when the flow intensity is at fixed value.
提出了一种计算推移质输沙率的方法及公式,该公式表明,在水流强度一定时,输沙率并非为一个常量,而是随颗粒在床面的相对暴露度而变。
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