A Velocity Coupling Method for Atomization Modeling: Application to Piezoelectric Pulsation-Driven Glass Nozzles

被引：1

作者：

Zha, Jinping ^{[1
]}

Shang, Liangchao ^{[1
]}

Wu, Winston Duo ^{[1
]}

Chen, Xiao Dong ^{[1
]}

Xiao, Jie ^{[1
]}

机构：

[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Sch Chem & Environm Engn, Particle Engn Lab China Petr & Chem Ind Federat, Suzhou 215123, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2024年 / 63卷 / 39期

基金：

中国国家自然科学基金;

关键词：

INKJET PRINT-HEAD; LIQUID; DEMAND;

D O I：

10.1021/acs.iecr.4c02237

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A velocity coupling method is presented for numerical investigation of droplet formation through glass nozzles driven by piezoelectric pulsation. The key idea is to first model the phenomena inside and outside of the nozzle separately. This approach allows in-nozzle and out-nozzle models to focus on their respective modeling challenges, e.g., coupled multiphysics beyond fluid mechanics for the former and liquid-air interface tracking for the latter. After coupling them through velocity mapping, the complete atomization process can be simulated. The results show that periodic pulsation of the piezoceramic component attached to the glass capillary drives regular displacement of the capillary wall, leading to a rhythmic change in the chamber volume and hence the flow rate ejected from the nozzle. Such disturbance results in the breakup of a liquid jet into a stream of droplets. To demonstrate model effectiveness, the impact of disturbance frequency on atomization has been analyzed.

引用

页码：16915 / 16927

页数：13

共 28 条

[1] Engineering Advances in Spray Drying for Pharmaceuticals [J].