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요약정보
造雪机用旋流式喷嘴的雾化性能研究 / Study of the Atomization Performance of Swirl Nozzle for Snow-making Machine
Resource Type
Academic Journal
Authors
吴海峰
;
刘佳维
;
王瑞祥
;
张博文
;
徐荣吉
;
晏刚
;
董佩文
;
张鸿俊
;
Wu Haifeng
;
Liu Jiawei
;
Wang Ruixiang
;
Zhang Bowen
;
Xu Rongji
;
Yan Gang
;
Dong Peiwen
;
Zhang Hongjun
Source
制冷学报 / Journal of Refrigeration
. 43(6):65-73
Subject
室外造雪机
旋流喷嘴
雾化特性
VOF
Language
Chinese
ISSN
0253-4339
Online Access
Find it @ DONGA
초록
喷嘴的流量、雾化锥角、雾化粒径等是决定室外造雪机成雪过程的重要因素.针对国产室外造雪机用旋流式喷嘴,本文基于VOF方法和RNG k-ε 湍流方程建立了雾化模型,对水在喷嘴内的雾化过程进行研究,分析了入口压力和喷嘴内壁面光洁度对雾化效果的影响.结果表明:雾化锥角和液膜厚度对入口压力变化的敏感性较弱;雾化粒径随入口压力的增大而减小,粒径减小的主要原因是流体速度增加,液膜不稳定性增强,增强了液滴的二次破碎;喷嘴内壁面光洁度减小,雾化产生的空气涡减小,水雾化锥角减小,但有助于获得较大的雾化流量.
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