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.
Source PublicationPROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON APAC 2011
2012
Pages1533-1540
Conference Name6th International Conference on Asian and Pacific Coasts (APAC)
Conference DateDEC 14-16, 2011
Conference PlaceHong Kong, PEOPLES R CHINA
AbstractA 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.
KeywordModel
DepartmentLMFS流固土耦合力学(LHO)
Funding OrganizationUniv Hong Kong
ISBN978-981-4366-48-9
URL查看原文
Indexed ByCPCI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46864
Collection流固耦合系统力学重点实验室
Corresponding AuthorZang, ZP (reprint author), Chinese Acad Sci, Key Lab Hydrodynam & Ocean Engn, Inst Mech, 15 N 4th Ring W Rd, Beijing, Peoples R China.
Recommended Citation
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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