Impact of basset force on the movement of soluble bubble in fluid

To analyze the impact of Basset force on the solublebubbles' movement in fluid, a dynamic coupling model was proposed inconsideration of the coupling relationship between the rising velocity andthe mass transfer rate of bubbles. According to the calculation and analysisof ammonia bubble absorption, it could be concluded that Basset force hadsignificant impact on the movement of soluble bubbles. Hence, anondimensional parameter (\eta ) and its calculation method wereintroduced to scale the impact on bubbles of Basset force. With thepresented model and the parameter \eta , the analysis of risingprocess of bubbles in water indicatesthat the gas solubility coefficient H, which is the decisive parameter,determines the impact intensity of Basset force on bubbles. The impact couldbe ignored when H<10^-4, while the impact intensity increases sharplywhen H>10^-4. Furthermore, the smaller the bubbles are, the greaterthe impact intensity of Basset force is. However, the relationship betweenthe depth of bubbles' location and the impact intensity is weak.