Abstract
This paper investigates numerically the effects of forced circulation on transient thermal distribution and fluid flow inside a cold vessel with through-flow resulting from warm influx. A forced agitation flow is introduced within the vessel to aid in mixing. A two-dimensional system is adopted. The dimensionless parameters governing the transport phenomena are identified. The governing differential equations in dimensionless form are numerically integrated by means of the finite difference technique. In numerical computations, the aspect ratios of the vessel, as well as the location of the warm influx and stirring stream, are varied. Results are obtained for the time history of the fluid flow pattern and isothermal pattern, and the bulk temperature in the entire vessel together with the effects of stirring stream. The study can be applied to optimize mixing performance in manufacturing processes such as ladle metallurgy.
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