Experimental and numerical analysis of the internal flow of a rotary atomizer

被引：8

作者：

Charanandeh, Ali ^{[1
]}

Seo, Yechan ^{[1
]}

Kasbi, Milad Khaleghi ^{[1
]}

Dafsari, Reza Alidoost ^{[1
]}

Hashim, Mohamed Y. ^{[1
]}

Lee, Jeekeun ^{[2
]}

机构：

[1] Jeonbuk Natl Univ, Grad Sch, Jeonju, South Korea

[2] Jeonbuk Natl Univ, Div Mech Syst Engn, Jeonju, South Korea

来源：

CHEMICAL ENGINEERING SCIENCE | 2023年 / 267卷

基金：

新加坡国家研究基金会;

关键词：

Rotary atomizer; Multiphase flow; Volume of fluid (VOF); CFD simulation; Slinger nozzle; Wave formation; LIQUID BREAKUP REGIMES; SPRAY CHARACTERISTICS; DROP; DYNAMICS; BEHAVIOR;

D O I：

10.1016/j.ces.2022.118327

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Using high-speed imaging technique and the volume of fluid (VOF) method, an experimental and numer-ical analysis of the flow behavior inside a rotary atomizer was conducted. To scrutinize the effect of grav-ity on the internal flow of the nozzle, the experiments and CFD simulations were carried out at horizontal (without gravity effect) and vertical (with gravity effect) configurations. The mass flow rate exiting the nozzle orifices was measured; the flow behavior inside the nozzle orifices was investigated; the thickness of the rivulet and film inside the nozzle orifices was compared to existing analytic models. It was found that gravity had a significant impact on the flow distribution inside the nozzle cavity. The liquid flow dis-tribution exiting the nozzle orifices was not uniform in the vertical configuration (due to gravity). Four wave patterns were identified on the surface of the nozzle disk: smooth film, concentric wave, spiral wave, and arc-shaped wave. (c) 2022 Elsevier Ltd. All rights reserved.

引用

页数：17

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