Influence of air-lift artificial upwelling on water temperature

LENG Jin-ying，HUANG Hao-cai，CHEN Jia-wang，FAN Wei，GE Han，

LIN Shan，LIU Ming-zhou，YANG Jing，CHEN Ying

（Ocean College，Zhejiang University，Hangzhou 310058，China）

Abstract：In order to solve the problems of the influence of air- lift artificial upwelling on the surrounding water temperature and nutrientetc，computational fluid simulation was applied to the simulation of temperature. After the analysis of calculation，the relationship be-tween upwelling process and the temperature change was established. A method was presented to use the VOF multiphase flow model to simulate the temperature，researching on air-liftartificial upwelling effects on water temperature. The effect of the air-lift artificial upwelling was evaluated on the basis of the results of simulation，the qiandao lake test was done. The experimental results show that，the

simulation is basically accordant with the results of experiment. At the same time，this model can be a good guidance for the next sea trial and also builds up the base of the design of air-lift artificial upwelling system.