Simulation and optimization of flow field in a novel channel induction heating tundish
To address the inadequate uniformity and notable temperature differences within the steel flow of a five-stream induction-heated tundish(IHT)at a steel plant,a novel channel outlet structure is proposed to optimize the tundish's flow dynamics.Through orthogonal experimental design,various configurations for the channel outlet structure are explored,yielding residence time distribution(RTD)curves for each scheme.By integrating range analysis with empirical water model experiments,the optimal configuration for the channel outlet is determined,as proposed in Trial 3.This configuration features an aperture of 90mm for outlet 1 with vertical and horizontal inclinations of 15° and 20°,respectively,while outlet 2 has an aperture of 80mm with a horizontal inclination of 20°.The channel diameter is set at 100mm.Under this design,the dead zone proportion is reduced to 18.61%,marking a 17.77%improvement over the prototype structure.Furthermore,the standard deviation of the average residence time is reduced to 8.36 s,representing a 66.64%enhancement over the original tundish.Computational fluid dynamic(CFD)simulations are conducted to model the flow field and temperature distribution for Trial 3,demonstrating that the tapered bifurcated channel structure facilitates efficient material and energy exchange within the tundish,thereby significantly improving flow field uniformity and temperature distribution.A robust theoretical foundation for optimizing the physical characteristics of channel IHT is provided.
tundishinduction heatingchannel structuredead zone proportionaverage residence time
万方数据
维普
