액화이산화탄소 유적의 수직 상승속도에 미치는 표면장력 변화의 영향에 대한 수치연구

다국어 초록 (Multilingual Abstract)

CO₂ ocean sequestration is being considered as a way to earn a frame of time to change other industrial life pattern to overcome the global warming crisis. The method is to dilute the captured CO₂ into ocean by ejecting the liquefied CO₂ through nozzles. The main issue of such method is the effectiveness and safety, and in both problems the rising speed of those LCO2 droplet is the key parameter. In this paper, the rising speed of LCO2 droplets is numerically studied including the effect of the surfactant which can be residing along the density interface of the droplets. A front tracking method with a simple surface tension model is developed and the rising speed of the droplets is carefully investigated with varying the various parameters. It is demonstrated that the variable surface tension can change the deformation of the droplet, the flow near the interface, and the rising speed.

참고문헌 (Reference)

1 Roger Peyret, "Computational Methods for Fluid Flow" Springer-Verlag 1986

2 정노택, "CO2 해양처리방안 비교연구" 한국해양환경공학회 8 (8): 111-115, 2005

3 Unverdi, O, "A front-tracking method for viscous, incompressible, multi-fluid flows" 100 (100): 1992

4 조윤태, "2액체 시스템에서 오염물질이 유적 거동에 미치는 영향" 2004