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A is the magnetic vector potential; γ is the electrical conductivity; μ is the magnetic permeability; v is the velocity of the inductor; J is the uniform density of the field current in the inductor; c...] found that a 30 T magnetic field can raise transformation temperature by 90 °C during continuous cooling. Compared with the research result in Ref. [14], it can be found that relatively low magnetic flux......
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was consistent with the actual wind field, and the flow distribution impacted by vegetation could be accurately reflected; 2) The wind velocity with vegetation was lower than that without vegetation... velocity is too great and the frequency is high [16]. It is necessary and significant to study the optimal design of vegetation to improve wind environment in winter. Combining field experimental tests......
electromagnetic field and,thereby,a more intensive velocity field were uniformly distributed in the stirred melt even at commercial frequency,and thus,a lower temperature difference in the stirred melt...Numerical simulation on electromagnetic field,flow field and temperature field in semisolid slurry preparation by A-EMSZHANG Zhifeng,CHEN Xingrun,XU Jun,and SHI Likai National Engineering &......
Distribution of Si particles in hypereutectic aluminum alloy tubes prepared under electromagnetic field ZHANG Zhi-qing(张志清)1, 2, LI Qiu-lin(李丘林)2, LIU Wei(刘 伟)1, LIU Qing(刘 庆)1 1. Laboratory... July 2006; accepted 15 September 2006 Abstract: Hypereutectic Al-Si alloy tubes were produced by centrifugal casting process using an electromagnetic field (EMF). A gradient distribution......
Preparation of continuous Si-Fe-C-O functional ceramic fibers CHEN Zhi-yan(陈志彦)1, LI Xiao-dong(李效东)2, WANG Jun(王 军)2, LI Wen-fang(李文芳)1 1. School of Mechanical Engineering, South China... in the polymer. The prepared polymer was spun into a continuous polymer fiber that was subsequently cured in air and heat-treated finally in N2 up to 1 350 ℃ for conversion into Si-Fe-C-O fibers. The resulted Si......
and there is a maximum flow velocity in front surface lower end of the dish solar concentrator. Moreover, there is a small piece of the low-speed region due to the flow field change on the rear surface... J. Cent. South Univ. (2018) 25: 1948-1957 DOI: https://doi.org/10.1007/s11771-018-3885-6 Effects of different poses and wind speeds on flow field of dish solar concentrator based on virtual wind......
SEN底部形状对结晶器内钢液流场和温度场的影响王翠娜1,温良英1,陈登福1,张大江1,彭政1,靳星1(1.重庆市重庆大学材料科学与工程学院)摘 要:针对某钢厂板坯连铸结晶器及浸入式水口(SEN)的结构参数,建立了描述结晶器内钢液流动的三维数学模型,应用FLUENT软件对结晶器内钢液的流场和温度场进行耦合计算,分析SEN底部形状对结晶器内流场和温度场的影响,并利用水模试验对钢液的流动行为进行了验证.结果表明:凸底水口出口附近钢液的速度较大,流股的冲击深度较大,使结晶器内高温区下移,不利于凝固坯壳的生长;平底水口自......
复合磁场作用下金属液面行为的实验研究邓安元1,王恩刚1,徐永义1,张兴武1,赫冀成1(1.辽宁省沈阳市东北大学材料电磁过程研究教育部重点实验室)摘 要:以低熔点Sn-32%Pb-52%Bi合金作为模拟介质,实验研究了高频交变磁场以及复合磁场(交变磁场+静磁场)作用下结晶器内液面波动及其不稳定行为.实验发现,单独施加交变电磁场时,液态金属表面处于波动状态,随着交变磁场磁感应强度增加,液面会依次出现稳定凸起圆台形变形和液柱的随机摆动现象;发生摆动时的凸起液面主要呈柱状和三棱柱状,此时液面中心波动略强于三相点处.随交......
is the flow velocity of liquid. The direction of Lorentz force Fx opposes to the direction of liquid flow vx. Then the flow of liquid is controlled by Lorentz force. This means that high magnetic field can...Article ID: 1003-6326(2005)05-1089-07 Effects of high magnetic field on modification of Al-Si alloy LIAN Feng(连 峰)1, 2, QI Feng(齐 峰)1, LI Ting-ju(李廷举)1, HU Guo-bing(胡国兵)1 (1......