1. Influence of Bi-piezoelectric micro-valve’s parameters on jet performance
- Author
-
Wenjian Cui, Feng Zhiyi, Guiling Deng, Can Zhou, and Peng Du
- Subjects
010302 applied physics ,Coupling ,Jet (fluid) ,Materials science ,Computer simulation ,business.industry ,Mechanical engineering ,02 engineering and technology ,Computational fluid dynamics ,equipment and supplies ,021001 nanoscience & nanotechnology ,complex mixtures ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,Physics::Fluid Dynamics ,Acceleration ,0103 physical sciences ,Volume of fluid method ,Fluent ,Integrated circuit packaging ,Electrical and Electronic Engineering ,0210 nano-technology ,business - Abstract
Piezoelectric Micro-valve is significant device in semiconductor packaging, surface mount and LED packaging field. The jetting dispensing process related needle high-speed acceleration movement and mechanism of droplets generation in complex coupling environment is the theoretical basis of the jet dispenser design. In this paper, a two-dimensional axisymmetric model based on Volume of fluid (VOF) method is built by computational fluid dynamics(CFD) software. Fluent dynamic grid technique is introduced in numerical simulation to analyzed the fluid-solid coupling process. The mechanism of on-demand dispensing is analyzed by simulation. Then the jetting dispensing platform is built. The results show that the volume of droplet will increase with the increase of the needle stroke and the filing pressure linearly, and the needle stroke is the main factor. It will provide theoretical basis for improving consistency of mechanical collision based jet dispenser.
- Published
- 2018