Abstract
The present paper proposes a numerical simulation method of two-phase flow for analysing LCO2 (liquid CO2) droplet plume at the middle depth of the deep ocean. This method contains the drift velocity of the LCO2 droplets and the dissolution of CO2 into the sea water as notable features. After being validated by comparing well with laboratory-scale air-bubble-plume experiments in literature, it is applied to the simulation of LCO2 plume in the deep ocean. The results indicate some new phenomena contradicting currently widespread conceptions : the present simulation suggests, firstly, that the dense CO2 solute does not peel from the LCO2 plume and, instead, forms the fountain-like flow against, the rising plume and. secondly, that the maximal vertical distance for the complete dissolution of the LCO2 droplets does not vary very much depending on the initial droplet size.
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