Carbon dioxide (CO 2 ) bubbles are common during carbon capture, utilization, and storage (CCUS) processes and have many impacts on water conservancy machinery, metallurgy, and the chemical industry. To explore the dynamic characteristics of CO 2 bubbles in different liquids in CCUS, the motion mechanism of CO 2 bubbles was integrated, and the effects of different liquid characteristics and different external conditions on the dynamic characteristics of CO 2 bubbles were classified and summarized. At the same time, the research progress of numerical simulation on CO 2 bubble dynamics is reviewed. Therefore, approaches and methods that can be further explored in theoretical analysis, experimental research, and numerical simulation of CO 2 bubble dynamics are proposed, which can provide reference and guidance for engineering practice, especially CCUS technologies.

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Cavitation is not rare in the field of the water conservancy machinery, and it also effects production and life deeply. To explore the results of cavitation, the formation, expansion, collapse and movement mechanism of the cavitation bubble are integrated and the theories of cavitation under various conditions are summarized; at the same time, the adverse effects and the available ways of engineering caused by cavitation are analyzed. Based on this, the ways or methods for further analysis, prevention or enhancement of cavitation in the field of engineering technology are proposed, so as to provide guidance for engineering technology.