caa a22 4500 605546835 CHVBK 20210128100943.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s10236-015-0815-0 doi (NATIONALLICENCE)springer-10.1007/s10236-015-0815-0 Numerical investigation of fluid mud motion using a three-dimensional hydrodynamic and two-dimensional fluid mud coupling model [Elektronische Daten] [Xiaochen Yang, Qinghe Zhang, Linnan Hao] A water-fluid mud coupling model is developed based on the unstructured grid finite volume coastal ocean model (FVCOM) to investigate the fluid mud motion. The hydrodynamics and sediment transport of the overlying water column are solved using the original three-dimensional ocean model. A horizontal two-dimensional fluid mud model is integrated into the FVCOM model to simulate the underlying fluid mud flow. The fluid mud interacts with the water column through the sediment flux, current, and shear stress. The friction factor between the fluid mud and the bed, which is traditionally determined empirically, is derived with the assumption that the vertical distribution of shear stress below the yield surface of fluid mud is identical to that of uniform laminar flow of Newtonian fluid in the open channel. The model is validated by experimental data and reasonable agreement is found. Compared with numerical cases with fixed friction factors, the results simulated with the derived friction factor exhibit the best agreement with the experiment, which demonstrates the necessity of the derivation of the friction factor. Springer-Verlag Berlin Heidelberg, 2015 Fluid mud nationallicence Two-layer model nationallicence Friction factor nationallicence Yang Xiaochen Research Institute of Water Resources and Hydropower, Liaoning Province, 110003, Shenyang, Liaoning Province, China aut Zhang Qinghe State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, 300072, Tianjin, China aut Hao Linnan Office of Liaoning Provincial Flood Control and Drought Relief Headquarters, 110003, Shenyang, China aut Ocean Dynamics Springer Berlin Heidelberg 65/3(2015-03-01), 449-461 1616-7341 65:3<449 2015 65 10236 https://doi.org/10.1007/s10236-015-0815-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10236-015-0815-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yang Xiaochen Research Institute of Water Resources and Hydropower, Liaoning Province, 110003, Shenyang, Liaoning Province, China aut NATIONALLICENCE 700 1- Zhang Qinghe State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, 300072, Tianjin, China aut NATIONALLICENCE 700 1- Hao Linnan Office of Liaoning Provincial Flood Control and Drought Relief Headquarters, 110003, Shenyang, China aut NATIONALLICENCE 773 0- Ocean Dynamics Springer Berlin Heidelberg 65/3(2015-03-01), 449-461 1616-7341 65:3<449 2015 65 10236