According to the transformation relationships between the Cartesian coordinates and the general curvilinear coordinates, the governing equations of the model are derived as the forms in the general curvilinear coordinates from those in the Cartesian coordinates. In the model, the contravariant velocities are adopted as the independent variables in non-orthogonal grids. The momentum equations keep strongly conservative forms and the boundary conditions can be given easily. The model used a staggered grid arrangement. The discrete equations are solved using the SIMPLIC algorithms. The numerical model has been validated against the bifurcated flow of which the diversion angle is 30 degree. Compared with the measured values, the numerical shallow water model is shown to be capable of simulating the water domains with irregular boundaries.
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25th International Conference on Offshore Mechanics and Arctic Engineering
June 4–9, 2006
Hamburg, Germany
Conference Sponsors:
- Ocean, Offshore, and Arctic Engineering Division
ISBN:
0-7918-4749-7
PROCEEDINGS PAPER
A Numerical Shallow Water Model Based on the Non-Orthogonal Curvilinear Grids
Chaofeng Tong,
Chaofeng Tong
Hohai University, Nanjing, China
Search for other works by this author on:
Yanqiu Meng
Yanqiu Meng
Hohai University, Nanjing, China
Search for other works by this author on:
Chaofeng Tong
Hohai University, Nanjing, China
Yanqiu Meng
Hohai University, Nanjing, China
Paper No:
OMAE2006-92424, pp. 813-818; 6 pages
Published Online:
October 2, 2008
Citation
Tong, C, & Meng, Y. "A Numerical Shallow Water Model Based on the Non-Orthogonal Curvilinear Grids." Proceedings of the 25th International Conference on Offshore Mechanics and Arctic Engineering. Volume 4: Terry Jones Pipeline Technology; Ocean Space Utilization; CFD and VIV Symposium. Hamburg, Germany. June 4–9, 2006. pp. 813-818. ASME. https://doi.org/10.1115/OMAE2006-92424
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