于海岐朱苗勇
金属学报
建立了描述圆坯连铸结晶器电磁搅拌过程的三维数学模型. 采用有限元和有限体积结合的方法求解Maxwell方程组和湍流Navier-Stokes方程, 分析了结晶器电磁搅拌过程的磁场、流场、温度场和夹杂物轨迹特征, 并考虑了励磁电磁强度和频率的影响. 研究表明, 磁场模拟结果与现场实测数据一致, 电磁力...
关键词:
圆坯结晶器
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electromagnetic stirring (EMS)
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electromagnetic field
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flow field
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Temperature field
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Inclusion
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numerical simulation
GE Yunlong YANG Yuansheng JIAO Yuning HU Zhuangqi Institute of Metal Research
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Academia Sinica
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Shenyang
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ChinaGAO Yunyan JIA Guanglin Northeast University of Technology
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Shenyang
,
China associate professor
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Institute of Low Energy Nuclear Physics
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Beijing Normal University
,
Beijing
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100875
,
China
金属学报(英文版)
A new technique of centrifugal casting under electromagnetic field was firstly proposed and investigated.Taking a heat resisting alloy steel 25Cr20Ni and an Al-Cu alloy as examples,products,though their length,diameter and wall thickness are varied,re- vealed so superior macrostructures that the mec...
关键词:
electromagnetic field
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null
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null
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null
J. Li
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W. Liu
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Y.Q. Lai
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null
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null
金属学报(英文版)
Two full 3D steady mathematical models are developed by finite element method (FEM) to calculate coupled physics fields: the electro-magnetic model is built and solved first and so is the fluid motion model with the acquired electromagnetic force as source body forces in Navier-Stokes equations. Eff...
关键词:
coupled simulation
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null
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null
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null
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null
Z.D. Qian
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B.W. Li
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E.G. Wang
金属学报(英文版)
A new treatment for interface of metal and dielectric in finite-difference time domain(FDTD) method was presented, further how and why this treatment should be as itis was explained. The FDTD method was developed to compute the low-frequencyelectromagnetic fields in the metal instead of the traditio...
关键词:
FDTD method
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null
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null
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null
张春华
,
于海
,
张冬华
硅酸盐通报
为了提高聚合硫酸铁的混凝性能,增强对污水的去除能力.利用自制交流变频磁化装置,对聚合硫酸铁溶液进行磁化处理,以铁盐水解形态Feb为指标,交流变频电磁场的频率、电压、电流及磁化时间为实验因素,对电磁场作用下的聚合硫酸铁溶液进行形态分析,并与非磁化的PFS溶液进行对比;以高炉煤气洗涤水为实验水样,通过混...
关键词:
聚合硫酸铁
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电磁场
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形态分布
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水处理
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出水浊度
