利用VOF(volume of fluid)方法和Lagrangian离散模型模拟了厚度为135 mm中薄板坯连铸结晶器内的钢液流动及钢/渣界面波动行为,分析了结晶器宽度、水口浸入深度、水口侧孔倾角、拉速和吹氩对结晶器内钢液流动和液面波动的影响规律.结果表明:钢液从三孔浸入式水口流人结晶器后形成上、下三个回流区;吹氩使结晶器上回流区靠近水口附近形成二次涡流;在一定拉速下,增加水口侧孔倾角和浸入深度均能有效抑制钢/渣界面波动;增加拉速和在一定拉速下增加结晶器宽度均将加剧液面波动.
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