金属学报  1990, Vol. 26 Issue (3): 92-98

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气液两相流的流场特性研究——随机轨迹分离流数学模型

周明;李文采

冶金工业部钢铁研究总院;北京100081;冶金工业部钢铁研究总院

FLUID DYNAMICS IN A GAS STIRRED LADLE——A Separated Flow Model with Stochastical Trajectories

ZHOU Ming;LI Wencai Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing

周明;李文采. 气液两相流的流场特性研究——随机轨迹分离流数学模型[J]. 金属学报, 1990, 26(3): 92-98.
, . FLUID DYNAMICS IN A GAS STIRRED LADLE——A Separated Flow Model with Stochastical Trajectories[J]. Acta Metall Sin, 1990, 26(3): 92-98.

摘要 参考文献 相关文章 Metrics 全文: PDF(572 KB)   摘要: 针对底吹气液两相流过程的非均匀性和气泡运动过程随机性,本文从理论上提出用气液分离流动模式处理气液两相流动的方法,建立了随机轨迹分离流数学模型。该模型在Lagrangian时间序列坐标系中分析气泡的流动特性,在Eulerian空间位置坐标系中描述液体的紊流流动过程;气液相间的相互作用以气泡源项的形式在Eulerian场中予以分析;气泡的轨迹由Monte Carlo随机采样方法确定。为便于与前人的工作相比较,本文还采用均相流模型进行解析计算。研究结果表明,本文提出的分离流模型理论上合理,其计算结果与实测结果比较一致。 关键词 ： 气液两相区,  流场分布,  分离流模型     Abstract：A separated flow model with stochastical trajectories has been develop-ed to describe the fluid flow in a bubble stirred ladle. The bubble dispersion, tur-bulent characteristics and gas liquid interactions can be predicted by this mathema-tic model. The bubble flow as a dispersed phase is treated in Lagrangian frame ofreference and the analysis of the turbulent flow for liquid phase is conducted inEulcrian field. The interactions between bubbles and liquid phase are considered asa bubble source term in the control equation for continuous phase. The Monte Carlosampling method is used to determine bubble trajectories. The homogeneous flowmodel is also taken into consideration so that it can be compared with the separatedflow model. Numerical predictions for a water model of a ladle show that thepredicting results for the separated flow model are satisfatory quantitative agreementwith experiment ones, but the predicting ones for homogeneous model are at variancewith experiment ones. Key words： Gas-liquid phase region    fluid flow    separated flow model 收稿日期: 1990-03-18      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 周明 李文采 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1990/V26/I3/92 1 Sahai Y, Guthrie R I L. Metall Trans, 1982; 13B: 193 2 Sano M, Mori K. Trans Iron Steel Inst Jpn, 1983; 23: 169 3 Sano M,Mori K.沈阳喷射冶金和钢的精炼学术会议论文集,中国冶金协调委员会辽宁省金属学会编.沈阳,1984 2:1 4 Tacke K-H, Schubert H-G, Weber D-J, Schwerdtfeger K. Metall Trans, 1985; 16B: 263 5 何庆林,东北工学院硕士论文,1984 6 杜嗣琛,张家芸,李英,魏寿昆.化工冶金,1985;4:123 7 Sahai Y, Guthrie R I L. Metall Trans, 1982; 13B: 203 8 Grevet J H, Szekely J, El-Kaddah N. Int J Heat Mass Transfer, 1982; 25: 487 9 Szekely J, Asai S. Trans Iron Steel Inst Jpn, 1975; 15: 270 10 Szekely J, Lehner T. Chang C W. Ironmaking Steelmaking, 1979; 6: 285 11 Szekely J, Grevet J. Scaninject. II 2nd International Conf on Injection Metallurgy, Jernkontorct, Lu-LEA, Sweden, June 12--13． 1980, 5: 21 12 Sahai Y, Gurhrie R I L. Metall Trans, 1982; 13B: 125 13 Mazumdar D, Guthrie R I L. Metall Trans, 1985; 16B: 83 14 李有章,郭鸿志.工程热物理学报,1984;5:97 15 张家芸.北京科技大学博士论文,1985 16 Crowe C T. Sharma M P, Stock D E. Trans ASME, Ser. I: J Fluid Eng, 1977; 99: 325 17 Yutaka Tsuji, Yoshinobv Morikawa, Kozo Tershima. Int J Multiphase Flow, 1982; 8: 71 19 徐忠济.蒙特卡罗方法,上海科技出版社,1985;6 20 刘德贵,费景高,于泳江,李广元.Fortran算法汇编,第二分册,北京:国防工业出版社,1984 21 周明.冶金工业部钢铁研究总院博士论文,1988 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed