董伟
个人信息Personal Information
副教授
博士生导师
硕士生导师
性别:男
毕业院校:日本东北大学
学位:博士
所在单位:材料科学与工程学院
电子邮箱:w-dong@dlut.edu.cn
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Simulation of the Effects of the Physical Properties on Particle Formation of Pulsated Orifice Ejection Method (POEM)
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论文类型:会议论文
发表时间:2011-11-08
收录刊物:EI、CPCI-S、Scopus
卷号:509
页面范围:161-+
关键字:POEM; Physical parameters; Simulation; Ejection; Mono-sized particle
摘要:A simulation method was used to study the effects of physical parameters, including the contact angle between molten metal and material of orifice, surface tension and viscosity on particle formation of POEM. Stable droplets can be obtained only when the surface tension is adequate and the contact angle is at least 90 degrees or higher. Within a wide range, viscosity has little effect on droplet formation; as the viscosity increases, necking time is postponed and vibration time is shortened.