Numerical prediction of the dilution process and its biological impacts in CO2 ocean sequestration
Numerical prediction of the dilution process and its biological impacts in CO2 ocean sequestration
复制标题
CO2海洋封存稀释过程及其生物影响的数值预测
DOI：
10.1007/s007730200005
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发表时间：
2002
影响因子：
2.6
通讯作者：
Kei Sato
中科院分区：
文献类型：
--
作者：
Toru Sato;Kei Sato
摘要 为研究海洋封存二氧化碳的生物影响，对深海注入点附近二氧化碳的稀释过程进行了研究。从流体动力学、化学和生物相结合的方法出发，发展了一种结合质量传递的两相计算流体力学(CFD)方法，用于预测液滴羽流、液滴中二氧化碳的溶解和深海中溶解的二氧化碳(DCO2)的平流-扩散。此外，还计算了DCO2浓度对pH的影响。此外，还给出了奥尔巴赫等人的同态概念。被纳入预测DCO2对海洋生物造成的致命损害。模拟结果表明，无论是在小规模的野外实验中还是在我们提出的实际案例中，二氧化碳封存对生物的影响都是微不足道的。
Abstract In order to investigate the biological impacts of the ocean sequestration of CO2 (carbon dioxide), the dilution processes of CO2 were investigated near injection points in the deep ocean. From a combined fluid-dynamics, chemical, and biological approach, a two-phase computational fluid dynamics (CFD) method with mass transfer was developed to predict droplet plume flow, the dissolution of CO2 from droplets into seawater, and the advection–diffusion of dissolved CO2 (DCO2) in the deep ocean. Changes in pH due to the concentration of DCO2 were also calculated. In addition, the isomortality concept of Auerbach et al. was incorporated to predict the lethal damage to marine organisms caused by DCO2. The simulation results suggested that the biological impacts of CO2 sequestration were insignificant in terms of mortality in both small-scale field experiments and the real-life cases we propose.