A water model experiment and a transient 3D numerical model were designed and implemented to quantitatively evaluate the flow-induced erosion behavior of the refractory lining in a continuous casting tundish. A relationship between the erosion rate and flow characteristic parameters was proposed and experimentally verified. Boric acid tablets were used in the water model experiment to determine the flow-induced erosion rate, and the numerical model defined the two-phase flow pattern. The results indicate that the impacting and rubbing effects caused by the fluid flow can be quantitatively characterized by the turbulent kinetic energy and wall shear stress. The proposed empirical dependence describes the erosion rate of the boric acid tablet with acceptable accuracy. The most serious erosion occurs inside the turbulence inhibitor, and the erosion rate sharply drops and steadily reduces with the water flow outside the turbulence inhibitor. The influence of casting speed on the refractory erosion rate is also quantitatively analyzed using the developed model with the introduction of the proposed correction.

设计并实施了水模型实验和瞬态 3D 数值模型，以定量评估连铸中间包耐火内衬的流动侵蚀行为。提出了侵蚀速率与流动特性参数之间的关系并进行了实验验证。在水模型实验中使用硼酸片来确定流动引起的侵蚀速率，数值模型定义了两相流模式。结果表明，流体流动引起的冲击和摩擦效应可以通过湍流动能和壁面剪应力来定量表征。建议的经验依赖性以可接受的准确度描述了硼酸片的侵蚀速率。最严重的侵蚀发生在湍流抑制剂内部，随着湍流抑制剂外的水流，侵蚀速率急剧下降并逐渐减小。还使用已开发的模型并引入了所提出的修正来定量分析铸造速度对耐火材料侵蚀率的影响。