工程科学学报2016，Vol.38Issue(10)：1393-1403,11.DOI:10.13374/j.issn2095-9389.2016.10.007
基于 PIV 技术的板坯连铸结晶器内钢水流动行为研究
Study on fluid flow in a continuous casting slab mold using particle image velocimetry
摘要
Abstract
A 1/4 scale water model of slab molds was built to investigate the fluid flow and its symmetry during casting. The mod-el was established according to a 200 mmí2040 mm actual mold. The velocity in the mold was measured by using particle image ve-locimetry ( PIV) . By analyzing the velocity field, the fluid flow behaviors such as flow patterns, level fluctuation, time history of speed on symmetrical points, horizontal speed below the meniscus, vertical speed nearby the narrow face and impingement depth could be studied. The effect of casting speed on the fluid flow behaviors mentioned above was investigated. The results show that the PIV technology can not only measure the velocity field, but also show the flow symmetry in a distinctive perspective so that proposing meas-ures for the continuous casting process, such as casting speed, the geometric of the submerged entry nozzle ( SEN) and submergence depth of SEN. After analysis, a conclusion can be drawn that the casting speed at 0. 5 m·min-1 is better than 0. 6 m·min-1 under the casting condition. The results show that the PIV technology is a useful method to optimize the continuous casting conditions.关键词
连铸/结晶器/流体流动/粒子图像测速技术/对称性Key words
continuous casting/molds/fluid flow/particle image velocimetry/symmetry分类
矿业与冶金引用本文复制引用
任磊,张立峰,王强强,赵星..基于 PIV 技术的板坯连铸结晶器内钢水流动行为研究[J].工程科学学报,2016,38(10):1393-1403,11.基金项目
国家自然科学基金资助项目(51274034,51334002,51404019) （51274034,51334002,51404019）
