CAJ | 학술논문

以西沙门水沙实测资料为依据，运用悬沙通量机制分解法将悬沙净输移通量表示为多个动力影响项，讨论区域内悬沙输移的时空特征，分析认为平流输沙在研究区域内为主要输沙项，“潮泵效应”输沙项为次要项。从涨落潮、流速和含沙量的变化过程讨论其动力机制，结果表明：西沙门悬沙浓度在潮流作用下具有明显的潮周期变化，悬沙沿岸输移；平流输沙中欧拉输沙项主要取决于潮动力大小，斯托克斯输沙项受潮波非线性效应影响；“潮泵效应”输沙与泥沙悬浮“滞后效应”、涨落潮流流速的非对称性和当地悬沙浓度相关。
이서사문수사실측자료위의거，운용현사통량궤제분해법장현사정수이통량표시위다개동력영향항，토론구역내현사수이적시공특정，분석인위평류수사재연구구역내위주요수사항，“조빙효응”수사항위차요항。종창락조、류속화함사량적변화과정토론기동력궤제，결과표명：서사문현사농도재조류작용하구유명현적조주기변화，현사연안수이；평류수사중구랍수사항주요취결우조동력대소，사탁극사수사항수조파비선성효응영향；“조빙효응”수사여니사현부“체후효응”、창락조류류속적비대칭성화당지현사농도상관。
Based on the dynamics measurement of water levels, current velocities and suspended sediment con?centrations in Xishamen, the transport flux of suspended sediment was calculated by the flux decomposition meth?od, and the space?time distributional characteristics were analyzed. The results show that the advection plays a sig?nificant role in the regions and the second factor is the tidal pumping effect. The dynamic mechanism of main items was discussed in term of tiding, velocity and suspended sediment concentration process. The conclusion shows the Euler residual current effect is determined by tidal power. The Stokes current is influenced by the nonlinear effect of tide and wave. The tidal pumping effect is induced by the bottom sediment suspended, tidal dissymmetry and con?centration diffecence.