| PAUL Gour Chandra,SENTHILKUMAR Sukumar,PRIA Rana. 2018. Storm surge simulation along the Meghna estuarine area: an alternative approach. Acta Oceanologica Sinica, 37(1):40－49 |
| Storm surge simulation along the Meghna estuarine area: an alternative approach |
| Storm surge simulation along the Meghna estuarine area: an alternative approach |
| Received:November 05, 2016 |
| DOI：10.1007/s13131-018-1157-9 |
| Key words:method of lines storm surge nested grid finite difference method RKARMS (4, 4) method truncation errors |
| 中文关键词: method of lines storm surge nested grid finite difference method RKARMS (4, 4) method truncation errors |
| 基金项目: |
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| Abstract: |
| In this study, numerical prediction of surges associated with a storm was made through the method of lines (MOL) in coordination with the newly proposed RKARMS (4, 4) method for the meghna estuarine region, along the coast of Bangladesh. For this purpose, the vertically integrated shallow water equations (SWEs) in Cartesian coordinates were firstly transformed into ordinary differential equations (ODEs) of initial valued, which were then soloved using the new RKARMS (4, 4) method. Nested grid technique was employed for resolving the complexities of the region of interest with minimum cost. Fresh water discharge through the lower Meghna River was taken into account along the north east corner of the innermost child scheme. Numerical experiments were performed with the severe cyclone on April 1991 that crossed the coast over the study area. Simulated results by the study were found to be in good agreement with some reported data and were found to compare well with the results obtained by the MOL in addition with the classical 4th order Runge-Kutta (RK (4, 4)) method and the standard finite difference method (FDM). |
| 中文摘要: |
| In this study, numerical prediction of surges associated with a storm was made through the method of lines (MOL) in coordination with the newly proposed RKARMS (4, 4) method for the meghna estuarine region, along the coast of Bangladesh. For this purpose, the vertically integrated shallow water equations (SWEs) in Cartesian coordinates were firstly transformed into ordinary differential equations (ODEs) of initial valued, which were then soloved using the new RKARMS (4, 4) method. Nested grid technique was employed for resolving the complexities of the region of interest with minimum cost. Fresh water discharge through the lower Meghna River was taken into account along the north east corner of the innermost child scheme. Numerical experiments were performed with the severe cyclone on April 1991 that crossed the coast over the study area. Simulated results by the study were found to be in good agreement with some reported data and were found to compare well with the results obtained by the MOL in addition with the classical 4th order Runge-Kutta (RK (4, 4)) method and the standard finite difference method (FDM). |
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