吴海忠, 陈洪立, 乔欣.溶液属性对电流体动力学喷印的影响研究[J].轻工机械,2018,36(5):9-13 |
溶液属性对电流体动力学喷印的影响研究 |
Effect of Solution Properties on Electro Hydro Dynamic Printing |
|
DOI:10.3969/j.issn.1005 2895.2018.05.002 |
中文关键词: 电流体动力学 电喷印 动力黏度 表面张力 多物理场耦合软件COMSOL 锥射流 |
英文关键词:EHD(electro hydro dynamics) electro jet printing dynamic viscosity surface tension multi physics coupling software COMSOL cone jet |
基金项目:浙江省自然科学基金(LY18E050025) |
|
摘要点击次数: 1793 |
全文下载次数: 2604 |
中文摘要: |
为研究电流体电喷印中流体动力黏度、表面张力及电压等参数对喷印过程的影响,在前人对电流体动力学理论分析的基础上以质量分
数为10%~20%的聚氧化乙烯为模拟材料,采用多物理场耦合软件COMSOL构建电流体动力学数学模型进行仿真验证。在电场力、液体内部黏性力和表面张力的作
用下泰勒锥保持平衡,当电场力大于液体表面张力和黏性力时,液体破碎喷印形成锥射流。液体表面张力和动力黏度越大,喷印所需电场力就越大,相应时间锥
射流的形成也就越慢。 |
英文摘要: |
Aiming at investigating the effects of hydrodynamic viscosity, surface tension, voltage and other parameters on the printing process in the electro jet
printing of electrofluid, polyethylene oxide with mass fraction of 10% to 20% was used as the simulation material based on the previous theoretical analysis of electro hydro dynamics.The
multi physics coupling software COMSOL was used to construct the mathematical model of electro hydro dynamics for simulation verification. The Taylor cone maintains its balance
under the influence of the electric field force, the internal viscous force of the liquid and the surface tension. When the electric field force is greater than the liquid surface tension and the
viscous force, the liquid breaks and prints to form a cone jet. The greater the surface tension and dynamic viscosity of the liquid, the greater the electric field force required for jet printing,
and the slower the formation of the corresponding cone jet. |
查看全文 查看/发表评论 下载PDF阅读器 |
关闭 |