DEVELOPMENT OF DUNES IN ERODIBLE CHANNELS
DEVELOPMENT OF DUNES IN ERODIBLE CHANNELS
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DOI：
10.1017/s0022112074001960
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发表时间：
1974-01-01
影响因子：
3.7
通讯作者：
FREDSOE, J
中科院分区：
文献类型：
--
作者：
FREDSOE, J
本文用涡量输运方程对冲积河道中的水流进行了二维稳定性分析。在分析中，考虑了重力对推移质输移的影响，结果表明，重力对稳定性的影响很大。在不稳定的情况下，用二阶近似法研究了沙丘的进一步生长。这种非线性理论解释了沙丘很快变得不对称的实验事实。
A two-dimensional stability analysis of the flow in a straight alluvial channel has been carried out, using the vorticity transport equation. In the analysis an attempt has been made to account for the influence of gravity on bed-load transport, and this turned out to change the stability quite significantly.In the case of instability, the further growth of the dunes has been investigated using a second-order approximation, This nonlinear theory explains the experimental fact that the dunes very soon become asymmetric.