Application of ROMS for simulating evolution and migration of tidal sand waves

IMECH-IR > 流固耦合系统力学重点实验室

	Application of ROMS for simulating evolution and migration of tidal sand waves
	Zang ZP(臧志鹏); Cheng L; Gao FP(高福平); Zang, ZP (reprint author), Chinese Acad Sci, Key Lab Hydrodynam & Ocean Engn, Inst Mech, 15 N 4th Ring W Rd, Beijing, Peoples R China.
会议录名称	PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON APAC 2011
	2012
页码	1533-1540
会议名称	6th International Conference on Asian and Pacific Coasts (APAC)
会议日期	DEC 14-16, 2011
会议地点	Hong Kong, PEOPLES R CHINA
摘要	A three-dimensional morphodynamic numerical sand wave model is established based on an existing model, the Regional Oceanographic Modelling System (ROMS). In the model, the vertical flow structure, which plays an important role in the formation and evolution of sand waves, is resolved by solving three dimensional (3D) Reynolds-averaged Navier-Stokes (RANS) equations with a k-epsilon turbulence closure. The bed slope effect on the bedload transport is considered in the model. The model is capable of capturing sand wave evolution and migration processes, which can not be modeled by conventional stability models. First, a sensitivity analysis of the model configuration is conducted, including the morphological factor, the time step and the grid size, to find out an optimal balance between the computational time and the accuracy of results. The effects of the water depth, flow velocity and sand grain size on the Fastest Growing Mode (FGM) are then studied. Finally, a migrating artificial sand wave is simulated and numerical results are presented.
关键词	Model
课题组名称	LMFS流固土耦合力学(LHO)
资助信息	Univ Hong Kong
ISBN号	978-981-4366-48-9
URL	查看原文
收录类别	CPCI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/46864
专题	流固耦合系统力学重点实验室
通讯作者	Zang, ZP (reprint author), Chinese Acad Sci, Key Lab Hydrodynam & Ocean Engn, Inst Mech, 15 N 4th Ring W Rd, Beijing, Peoples R China.
推荐引用方式 GB/T 7714	Zang ZP,Cheng L,Gao FP,et al. Application of ROMS for simulating evolution and migration of tidal sand waves[C]PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON APAC 2011,2012:1533-1540.

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