| 水动力与生态耦合的赤潮藻类生长模型研究 |
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| 引用本文： | 田峰,葛根,杨晨.水动力与生态耦合的赤潮藻类生长模型研究[J].海洋技术,2007,26(2):34-37. |
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| 作者姓名： | 田峰 葛根 杨晨 |
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| 作者单位： | 天津大学机械工程学院,天津,300072 |
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| 摘 要： | 针对近岸海域赤潮藻类生长及分布的特点,将简化了的赤潮藻类模型与水动力学中的对流扩散方程相耦合,建立了一个水动力与生态耦合的赤潮藻类生长的深度模型。模型中用一个积分形式的指数函数模拟了藻类生长过程,用一个一阶线性函数近似模拟了藻类的死亡过程,用藻类浓度的一阶导数项模拟藻类的输运过程,用浓度的二阶导数模拟了藻类的扩散过程,并用高精度的三阶迎风格式对模型进行了数值模拟,结果表明,该模型能正确的反映藻类的生长特点,与实际情况吻合良好。
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| 关 键 词： | 赤潮模型 耦合 对流扩散 三阶迎风 |
| 文章编号： | 1003-2029（2007）02-0034-04 |
| 收稿时间： | 2006-10-15 |
| 修稿时间： | 2006年10月15 |
Research on HAB ecosystem Model combining with hydrodynamics |
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| TIAN Feng,GE Gen,YANG Chen.Research on HAB ecosystem Model combining with hydrodynamics[J].Ocean Technology,2007,26(2):34-37. |
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| Authors: | TIAN Feng GE Gen YANG Chen |
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| Institution: | School of Mechanical Engineering, Tianjin University 300072 |
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| Abstract: | Based on the growth and distribution characteristic of nutrient phytoplankton alongshore,we set up a depth model of growth of nutrient phytoplankton by combining dynamic with hydrodynamics.In the model,we simulated the phytoplankton growth process by using a exponential function in integral form;approximately simulated the phytoplankton death process by using a first order linear function;simulated the phytoplankton transport process by using a first order derivative term of the phytoplankton concentration;simulated the phytoplankton diffuse process by using a second order derivative term of the phytoplankton concentration,and numerical simulation was done with a high precision third order accurate difference scheme discretisation.The results show the model can explain the real condition well. |
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| Keywords: | nutrient phytoplankton coupling convection diffusion third order upwind scheme |
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