This paper presents a novel air–water model designed to represent the dynamics of multiple bubbles in the Hall-Héroult process of aluminum smeltingAluminum smelting cells. Air bubbles are continuously generated beneath a small rectangular carbon anodeCarbon anode specimen inserted into a water bath. The characteristics of bubble motion, including bubble size and bubble velocityBubble velocity are examined and compared during two phases of bubble movement: (a) sliding horizontally beneath the anodeAnode, and (b) rising vertically into the downstream side channel. Furthermore, the impact of air flow rate on these bubble dynamicsBubble dynamics features during different stages of the bubble journey is evaluated for a slightly inclined anodeAnode. The findings showed that increasing the air flow rate increases the bubble size, resistance, and velocity in the first period of bubble motion under the anodeAnode. In contrast, gas hold-up time under the anodeAnode decreases. Moreover, bubble velocityBubble velocity is enhanced by increasing the gas flow rateGas flowrate in the second period of bubble movement in the side channel. Tracking the bubble vertical motion in the side channel revealed that bubbles change their shape from spheroids to crescents while risingBubble rising in the side channel. In conclusion, regardless of increasing the bubbly layer resistance, the reductionReduction of gas hold-up time under the anodeAnode and enhancing bubble velocityBubble velocity in the model cell can help to decrease the whole cell resistance and improve aluminaAlumina mixingMixing in our model cell, both of which are desirable outcomes in the modern aluminumAluminum industryIndustry.