원문정보
초록
영어
The object of this research is to do quantitative measurements of air bubbles in quasi-two dimensional disk-shaped ice and to analyze it with a theoretical model. Width, length, and area of air bubbles in disk-shaped ice were measured. By comparison of ice-freezing model, air bubble growth model and experimental results, it could be found out that cylindrical bubbles and egg-shaped bubbles are distinguished because of the slope of width decrease. We discovered that different reason for termination of air bubble growth separates cylindrical bubbles and egg-shaped bubbles. We applied it to the theoretical model to make a new model including termination. By this new model, we interpreted the reasons for unique phenomena which occur only in disk-shaped ice. This result can be used to create a more detailed computer graphic model of air bubbles in ice.
목차
1. INTRODUCTION
2. MATERIALS AND METHODS
2. Measuring Dissolved Air Concentration
3. RESULTS
4. AIR BUBBLE GROWTH MODELING
(1) Basic postulates of the model
(2) Shape of air bubbles in water
(3) Air bubble growth model A0
(4) Numerical calculations of model A0
5. DISCUSSION
(1) Bias according to the distance from center
(2) Comparison of model A0 with experimental results.
(3) Classification of cylindrical and egg-shaped bubbles
(4) Different terminations of cylindrical and egg-shaped bubbles
(5) Mode1 A1 with additional termination procedures
(6) Comparison of model A1 with experimental results.
(7) Significance of the Research and the direction of Development
6. CONCLUSION
1. The formation of air bubbles and the distance from the center
2. The difference between cylindrical and egg-shaped air bubbles
3. The model of formation of air bubbles including termination
4. Analysis of the formation of air bubbles in disk-shaped ice using A1 model
7. REFERENCES