On a shallow water model for the simulation of turbidity currents
On a shallow water model for the simulation of turbidity currents
复制标题
DOI：
10.4208/cicp.2009.v6.p848
复制
发表时间：
2009
影响因子：
3.7
通讯作者：
T. M. D. Luna;M. Díaz;C. P. Madroñal;E. D. F. Nieto
中科院分区：
文献类型：
--
作者：
T. M. D. Luna;M. Díaz;C. P. Madroñal;E. D. F. Nieto
我们提出了一个模型hyperpycnal羽流或浊流，考虑到浊流和底部之间的相互作用，考虑沉积和侵蚀的影响，以及固体颗粒的输运，由于目前的推移质。还考虑了浊流骤降时周围水的夹带。忽略周围水的运动，考虑了刚性盖假设。该模型是作为一个深度平均系统的浅水假设下的方程描述的流体质量，沉积物质量和平均流量的平衡。分析了系统的特性，并采用有限体积格式和路径守恒Roe格式进行了数值模拟。
We present a model for hyperpycnal plumes or turbidity currents that takes into account the interaction between the turbidity current and the bottom, considering deposition and erosion effects as well as solid transport of particles at the bed load due to the current. Water entrainment from the ambient water in which the turbidity current plunges is also considered. Motion of ambient water is neglected and the rigid lid assumption is considered. The model is obtained as a depth-average system of equations under the shallow water hypothesis describing the balance of fluid mass, sediment mass and mean flow. The character of the system is analyzed and numerical simulations are carried out using finite volume schemes and path-conservative Roe schemes.