金属学报  2008, Vol. 44 Issue (10): 1203-1208

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离心中间包内钢液流动的数值模拟

王赟;钟云波;任忠鸣;王保军;雷作胜;张小伟

上海大学上海市现代冶金与材料制备重点实验室

NUMERICAL SIMULATION OF MOLTEN STEEL FLOW IN CENTRIFUGAL FLOW TUNDISH

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上海大学

王赟; 钟云波; 任忠鸣; 王保军; 雷作胜; 张小伟 . 离心中间包内钢液流动的数值模拟[J]. 金属学报, 2008, 44(10): 1203-1208 .
, , , , , . NUMERICAL SIMULATION OF MOLTEN STEEL FLOW IN CENTRIFUGAL FLOW TUNDISH[J]. Acta Metall Sin, 2008, 44(10): 1203-1208 .

摘要 参考文献 相关文章 Metrics 全文: PDF(2707 KB)   摘要: 采用数值模拟方法对离心中间包内钢液的流动结构及混合特性进行了研究,并用水模型结果进行了验证. 流场 的研究结果表明: 旋转室内强烈的湍流极大地促进了夹杂物的湍流碰撞生长. 另外, 在旋转室切向出流的影响下,分配室内形成了较大的水平环流. 环流的形成增强了钢液的混合程度, 且延长了夹杂物沿着液面运动的距离, 增大了夹 杂物的去除机会. 对钢液停留时间分布(RTD)的预测结果表明: 由于钢液的旋转流动, 离心中间包内的死区体积明显减小, 活塞区及混流区体积增加, 从而夹杂物的上浮去除率提高. 关键词 ： 离心中间包,  钢液流动,  RTD曲线,  夹杂物去除效     Abstract：ABSTRACT Flow structure and RTD curve in Centrifugal Flow Tundish was predicted by mathematical simulation method, and the results were verified with the measurement data obtained from water model. Simulation results showed that, the molten steel in the rotation chamber rotated in a horizontal pattern due to the effect of electromagnetic force, and the swirling flow will promote the inclusion collision and coalescence. Deflection characteristic of the outflow from the rotation chamber leads to the asymmetrical distribution in the flow structure of distribution chamber, thus a horizontal circumfluence was formed and it will promote the mixture of molten steel and extend the residence time. Compared with the traditional tundish, the fraction of dead volume in the Centrifugal Flow Tundish was reduced, meanwhile the fraction of plug volume and mix volume were increased, and the study on the inclusion behavior also showed that the growth rate due to the collision and floatation rate of inclusions in the Centrifugal Flow Tundish was superior to traditional tundish. Key words： Centrifugal Flow Tundish    molten steel flow    RTD curve    inclusion-removal efficiency    numerical simulati 收稿日期: 2008-01-22      ZTFLH:  TG249.7   服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 王赟 钟云波 任忠鸣 王保军 雷作胜 张小伟 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y2008/V44/I10/1203 [1]Miki Y,Kitaoka H,Sakuraya T,Fujii T.ISIJ Int,1992; 32:142 [2]Miki Y,Kitaoka H,Bessho N,Sakuraya T,Ogura S,Kuga M.Tetsu Hagané,1996;82:40 (三木祐司，北冈英就，别所永康，樱谷敏和，小仓滋，久我正昭．铁と钢，1996；82：40) [3]Miki Y,Shibata H,Fujii T,Bessho N,Kishimoto Y,Sori- machi K.Tetsu Hagané2000;86:239 (三木祐司，柴田浩光，别所永康，岸本康夫，反町健一，广田哲仁．铁と钢，2000；86：239) [4]Li B K,Qi F S,Wang F,Liu J.Acta Metall Sin,2007;43: 303 (李宝宽，齐凤升，王芳，刘杰．金属学报，2007；43：303) [5]Wang F,Li B K,Tsukihashi F.ISIJ Int,2007;47:568 [6]Launder B E,Spalding D B.Comp Meth Appl Mech Eng, 1974;3:269 [7]Tripathi A,Ajmani S K.ISIJ Int,2005;45:1616 [8]Damle C,Sahai Y.ISIJ Int,1995;35:163 [9]Yeh J L,Hwang W S,Chou C L.ISLJ Int,1993;33:588 [10]Spitzer K H,Duke M,Schwerdtfeger K.Metall Trans, 1986;17B:119 [11]Debroy T,Sychterz J A.Metall Trans,1985;16B:497 [12]He Y,Sahai Y.Metall Trans,1987;18B:81 [13]Sahai Y,Emi T.ISIJ Int,1996;36:667 [14]Zhang B W,Deng K,Lei Z S,Ren Z M.Acta Metall Sin, 2004;40:623 (张邦文，邓康，雷作胜，任忠鸣．金属学报，2004；40：623) [15]Zhang B W.PhD Thesis,Shanghai University,Shanghai, 2003 (张邦文．上海大学博士学位论文，上海，2003) [16]Madias J,Martin D,Ferreyra M,Villoria R,Garamendy A.ISIJ Int,1999;39:787 [1] 雷洪 赵岩 鲍家琳 刘承军 陈海耿 赫冀成. 多流连铸中间包停留时间分布曲线总体分析方法[J]. 金属学报, 2010, 46(9): 1109-1114. [2] 黄军涛; 赫冀成 . 方坯结晶器内钢液凝固及电磁制动的数值模拟[J]. 金属学报, 2001, 37(3): 281-286 . [3] 朱苗勇; 黄宗泽 . RH真空脱碳精炼过程的模拟研究[J]. 金属学报, 2001, 37(1): 91-94 . [4] 朱苗勇; 黄宗泽 . RH真空精炼装置内钢液流动行为的数值模拟[J]. 金属学报, 2000, 36(11): 1175-1178 . [5] 钟云波; 任忠鸣; 邓康; 蒋国昌; 徐匡迪 . 行波磁场净化液态金属时矩形管及三角形管内夹杂物去除效率的理论解析[J]. 金属学报, 1999, 35(5): 503-508 . Viewed Full text Abstract Cited   Shared      Discussed