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Through solutions of appropriate forms of the Navier-Stokes equation, the intermixing of fluid within gas-stirred ladles, with asymmetric single and multiporous plugs, can be modeled quite satisfactorily. In this study, mixing behavior and mixing mechanisms are analyzed as a function of porous plug location, tracer injection point, and ladle monitoring point. It is shown that off-centered bubbling gives the most consistent results in terms of minimizing mixing times, since angular momentum intermixes fluid across the width of a ladle. Comparisons between mathematical and experimental data are presented.