泰国湾潮汐潮流的数值模拟与理论模型探讨Numerical simulation and theoretical model of tidal current in Thailand Bay 摘要:（摘要内容经过系统自动伪原创处理以避免复制，下载原文正常，内容请直接查看目录。） 泰国湾是南海最年夜的一个海湾，其潮波体系绝对庞杂，特别是半日潮在湾口存在顺时针扭转的无潮点，有悖于北半球的普通纪律，泰语专业论文，因此遭到很多研究者的存眷。同时，对于泰国湾湾顶半日潮无潮点的存在性及其地位，至今各研究者所给出的数值模仿成果亦存在很年夜差别。另外，对于泰国湾潮汐的研究尚仅局限于材料剖析和数值模仿，未树立实际模子。本文基于FVCOM（Finite一Volume Coastal Ocean Model）树立了泰国湾及其周边海域的潮汐潮水数值模子；同时基于狭义Taylor解树立了泰国湾潮汐的一种双矩形实际模子。数值模子采取无构造三角形网格架构、无限体积办法的二维陆地潮汐数值模子，运用早先的全球潮汐模子DTU10供给的折衷常数停止水位预告作为开界限前提，同时对K1、O1、M2和S2四个重要分潮停止模仿。模仿成果与国际旱路局材料集中所列的29个验潮站停止比拟，四个分潮误差的均匀值分离为5。69cm、3。98cm、7。35cm和4。71cm。运用该模仿成果对泰国湾及周边海域的潮汐、潮水和潮能通量散布停止研究，并针对分歧底磨擦系数、地形停止敏理性试验。在实际模子中，泰国湾被幻想化为由分离代表泰国湾主体和曼谷湾的两个矩形海域所构成。我们斟酌了底磨擦及开界限强制感化，运用狭义Taylor成绩解研究了K1和M2分潮的潮汐动力学。实际模子优越地再现了泰国湾K1和M2分潮的潮汐特点，并将其分化为Kelvin波和Poincaré波情势，分离给出了K1和M2分潮的潮水及潮能通量密度散布图。模子提醒了Kelvin波和Poincaré波在泰国湾潮波构成中的进献，泰语毕业论文，从实际上说明了K1和M2分潮各无潮点的成因。为提醒曼谷湾和开界限前提在泰国湾M2分潮构成中的动力感化，设计了两组敏理性试验。试验成果注解，曼谷湾对于泰国湾湾顶无潮点的存在及地位起到症结感化；开界限迟角向西增长是湾口邻近顺时针扭转潮波体系构成的需要前提。联合数值模子和实际模子，证实了全日潮在泰国湾以Kelvin波为主，迟角散布重要受底磨擦作用，对地形变更绝对不敏感；半日潮在泰国湾内Kelvin波性质弱，在湾口和湾顶的Poincaré波性质较强，迟角散布受底磨擦作用小，对地形变更敏感，且重要受湾口开界限前提掌握。 Abstract: Thailand Bay is a bay of the South China Sea is the biggest, the tide wave system complex, especially semidiurnal tide in the mouth of the bay of clockwise rotation of the amphidromic point, contrary to the common discipline of the northern hemisphere, it was the attention of many researchers. At the same time, a bay of the Gulf of Thailand top semidiurnal tidal amphidromic point of existence and position, has given in the research of numerical simulating result also has very big difference. In addition, the research on the tide in Thailand Bay is limited to the material analysis and numerical simulation, and the actual model is not established. In this paper, based on FVCOM (finite volume coastal ocean model) establish the Gulf of Thailand and the surrounding waters of tidal tidal numerical model. At the same time, based on narrow Taylor solution set of tides in the Gulf of Thailand a double rectangular actual mold. Numerical model by the triangular grid architecture, the infinite volume method of two-dimensional land tidal numerical model, trade-off constant application earlier global tidal model DTU10 supply stop level notice as open boundary conditions, and to stop K1, O1 and M2 and S2 four important tide imitation. Imitation results and International Waterway Bureau of material from the column 29 tide station to carry on the comparison, four constituent error of the average separation is 5. 69cm, 3. 98cm, 7. 35cm and 4. 71cm. Application of the results of the Thailand Bay and the surrounding waters of the tide, tidal and tidal energy flux of the study, and for the bottom friction coefficient, the terrain stop sensitivity test. In the actual model, the Thailand Bay is idealized as an isolated representative of the main body of the Gulf of Thailand and the two rectangular waters of bangkok. We have considered the bottom friction and the open boundary forcing, the application of the narrow Taylor results for the study of the K1 and M2 tidal dynamics. The actual model reproduces the tidal characteristics of K1 and M2 in Thailand Bay, and divides it into Kelvin wave and Poincar wave form. The tidal and tidal energy flux density distribution maps of K1 and M2 are separated. Model reminds the Kelvin wave and Poincar wave in the Gulf of Thailand tide wave in the contribution, from the fact that the K1 and M2 tidal wave of the causes of the non tidal point. In order to remind the dynamic effect of Bangkok and the boundary conditions in the M2 tidal constituent of Thailand Bay, the two groups of sensitivity tests were designed. Comments on the results of the test, Bangkok Bay on the Gulf of Thailand Bay, the existence and status of non tidal point of the key role played; the slow growth of the open boundary to the west is the Gulf port near the tide wave system formed by the need for the premise. Joint numerical model and the practical model, confirmed the diurnal tides in the Gulf of Thailand to Kelvin wave mainly, angle of delay spread an important bottom friction effect, the terrain change absolutely not sensitive; semidiurnal tides in the Gulf of Thailand, Kelvin wave properties in the weak, in the mouth of the Bay and the Bay top Poincare wave properties of strong angle of delay spread by bottom friction effect is small, the terrain is more sensitive to the change, and the important from the bay mouth open boundary condition master. 目录: |
