Limitations of empirical sediment transport formulas for shallow water and their consequences for swash zone modelling
Limitations of empirical sediment transport formulas for shallow water and their consequences for swash zone modelling
复制标题
浅水沉积物输运经验公式的局限性及其对冲沙带建模的影响
DOI:
10.1080/00221686.2016.1212942
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发表时间:
2016-08
影响因子:
2.3
通讯作者:
Zhixian Cao
中科院分区:
文献类型:
--
作者:
Wei Li;Peng Hu;Thomas Pahtz;Zhiguo He;Zhixian Cao
ABSTRACT Volumetric sediment concentrations computed by phase-resolving swash morphodynamic models are shown to exceed unity minus porosity (i.e. the maximal physically possible concentration value) by up to factor of 105 when using standard expressions to compute the sediment transport rate. An ad hoc limit of sediment concentration is introduced as a means to evaluate consequences of exceeding physically realistic concentration by standard expressions. We find that implementation of this ad hoc limit strongly changes the quantitative and qualitative predictions of phase-resolving swash morphodynamic models, suggesting that existing swash predictions are unreliable. This is because standard expressions inappropriately consider or ignore the fact that the shallow swash water depth limits the storage capacity of transported sediment.
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影响因子:
2.3
作者:
G. Masselink;M. Hughes
通讯作者:
G. Masselink;M. Hughes
影响因子:
3.7
作者:
Fangfang Zhu;N. Dodd
通讯作者:
Fangfang Zhu;N. Dodd
影响因子:
4.7
作者:
M. Postacchini;M. Brocchini;A. Mancinelli;M. Landon
通讯作者:
M. Postacchini;M. Brocchini;A. Mancinelli;M. Landon
DOI:
10.1061/(asce)0733-9429(1991)117:4(414
发表时间:
1991-04-01
期刊:
JOURNAL OF HYDRAULIC ENGINEERING-ASCE
影响因子:
--
作者:
GARCIA, M;PARKER, G
通讯作者:
PARKER, G
影响因子:
4.7
作者:
Fangfang Zhu;N. Dodd
通讯作者:
Fangfang Zhu;N. Dodd