000			02146 a2200313 4500
001			1138334685
005			20250317100408.0
008			250312042018xx eng
020			_a9781138334687
037			_bTaylor & Francis _cGBP 84.99 _fBB
040			_a01
041			_aeng
072	7		_aRBK _2thema
072	7		_aKNB _2thema
072	7		_aTN _2thema
072	7		_aRBK _2bic
072	7		_aKNBW _2bic
072	7		_aTN _2bic
072	7		_aSCI026000 _2bisac
072	7		_aTEC009020 _2bisac
072	7		_aTEC010030 _2bisac
072	7		_a627.12205118 _2bisac
100	1		_aLiqin Zuo
245	1	0	_aModelling and Analysis of Fine Sediment Transport in Wave-Current Bottom Boundary Layer
250			_a1
260			_bCRC Press _c20180718
300			_a188 p
520			_bThe evolution and utilization of estuarine and coastal regions are greatly restricted by sediment problems. This thesis aims to better understand fine sediment transport under combined action of waves and currents, especially in the wave-current bottom boundary layer (BBL). Field observations, experimental data analysis, theoretical analysis and numerical models are employed. Silt-dominated sediments are sensitive to flow dynamics and the suspended sediment concentration (SSC) increase rapidly under strong flow dynamics. This research unveils several fundamental aspects of silty sediment, i.e., the criterion of the incipient motion, the SSC profiles and their phase-averaged parameterization in wave-dominated conditions. An expression for sediment incipient motion is proposed for silt-sand sediment under combined wave and current conditions. A process based intra-wave 1DV model for flow-sediment dynamics near the bed is developed in combined wave-current conditions. The high concentration layer (HCL) was simulated and sensitivity analysis was carried out by the 1DV model on factors that impact the SSC in the HCL. Finally, based on the 1DV model, the formulations of the mean SSC profile of silt-sand sediments in wave conditions were proposed. The developed approaches are expected to be applied in engineering practice and further simulation.
999			_c1968 _d1968