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The hydrodynamic study of artificial upwelling plume in density-stratified ocean
Applied Ocean Research ( IF 4.3 ) Pub Date : 2020-10-01 , DOI: 10.1016/j.apor.2020.102341
Zhongzhi Yao , Wei Fan , Zhujun Zhang , Yiwen Pan , Yanan Di , Ying Chen

Abstract Artificial upwelling is considered as a potential way to increase the phytoplankton productivity. However, one of major obstacles for the large-scale field application of artificial upwelling is the dilution of uplifted nutrient-rich water in density-stratified ocean. In this paper, the hydrodynamic characters, such as trajectory and initial velocity of artificial upwelling, is investigated by using theoretical and numerical methods. A mathematical model is derived to ensure the artificial upwelling captured by density interface with a specified density. The numerical simulation results are used to validate the mathematical model. The results present that artificial upwelling trajectory and concentration could be controlled by initial upwelling velocity and influenced by nozzle radius, current speed and density difference. By this way, artificial upwelling can be maintained a relative high concentration in the density interface and used to improve phytoplankton primary productivity.

中文翻译:

密度层状海洋人工上涌羽流的水动力研究

摘要 人工上升流被认为是提高浮游植物生产力的一种潜在方式。然而,人工上涌大规模野外应用的主要障碍之一是密度分层海洋中隆起的富营养水的稀释。本文采用理论和数值方法研究了人工上升流的轨迹和初速度等水动力特性。推导出数学模型,以确保密度界面捕获具有指定密度的人工上升流。数值模拟结果用于验证数学模型。结果表明,人工上升流轨迹和浓度受上升流初始速度控制,受喷嘴半径、流速和密度差的影响。通过这种方式,
更新日期:2020-10-01
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