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Ladle refining plays a significant role in steelmaking process to realize decarburization, desulfurization, deoxidation, inclusion removal and adjusting temperature and composition. The effect of ladle refining has a close relationship with the quality of molten steel and producing efficiency.1–4) Gas stirring is one of the most commonly applied techniques in ladle refining process. Argon gas injection from bottom plugs creates the re-circulatory flow that increases mixing of molten steel and promotes homogenization of chemical constituents and temperature. The argon flow also helps in agglomeration and growth of inclusions. In addition, rising gas bubbles due to argon flow may cause other phenomena such as breaking of slag layer and formation of eye opening at the top. Higher flow increases the eye open area which leads to an increase in the oxidation of steel as well as nitrogen pickup from the atmosphere. Moreover, higher degree of turbulence in this case leads to slag entrapment in steel and enhances the formation of exogenous inclusions.5) Thus, it is of great significance to determine proper argon stirring flowrate. Moreover, for high-capacity ladles used in many steel factories of China, two porous plugs are usually Effect of Gas Blown Modes on Mixing Phenomena in a Bottom Stirring Ladle with Dual Plugs