| Title |
Dam-Break and Transcritical Flow Simulation of 1D Shallow Water Equations with Discontinuous Galerkin Finite Element Method |
| Authors |
윤광희(Yun, Kwang Hee) ; 이해균(Lee, Haegyun) ; 이남주(Lee, Namjoo) |
| DOI |
https://doi.org/10.12652/Ksce.2014.34.5.1383 |
| Keywords |
불연속 갤러킨 유한요소법;리만 근사해법;기울기 제한자;천수방정식;댐 붕괴류;천이류 Discontinuous galerkin finite element method;Approximate riemannn solver;Slope limiter;Shallow water equation;Dam-break flow;Transcritical flow |
| Abstract |
Since 1970 transportation investment has been made rapidly, however the doubt on duplication and overinvestment of transportation facility also has been brought up. Thus the necessity for reasonable estimation of investment scale increases. In this paper various researches related to this subject are reviewed and categorized according to their methodologies, namely, the methodology using international comparison, trend of investment policy and endogenous economy development model. Based on these methodologies, AHP is applied to calculate proper investment scale. The result shows that the budget for satisfying the investment scale is estimated about 19.51~24.49 trillion won. This value is 4.28~9.26 trillion won higher than the proper investment budget established in National Fiscal Management Plan. In the future, it is necessary to establish systematic and efficient transportation investment plan by developing transportation policy model which can assess the economic feasibility, social equity and environmental soundness etc. at the same time. |