前混合磨料水射流磨料混合腔流固耦合分析

详细信息    查看全文 | 推荐本文 |

英文篇名：Fluid-structure Interaction Analysis of Pre-mixed Abrasive Water Jet Abrasive Mixing Chamber 作者：陈云 ; 刘瑞军 ; 陈秋 英文作者：Chen Yun;Liu Ruijun;Chen Qiu;Civil and Traffic Engineering College of Beihua University;College of Mechanical and Aerospace Engineering,Jilin University; 关键词：前混合磨料 ; 水射流 ; 混合腔 ; 流固耦合 英文关键词：pre-mixed abrasive;;water jet;;mixing chamber;;fluid-structure interaction 中文刊名：ZLYY 英文刊名：Journal of Beihua University(Natural Science) 机构：北华大学土木与交通学院;吉林大学机械与航空航天工程学院; 出版日期：2019-03-10 出版单位：北华大学学报(自然科学版) 年：2019 期：v.20 基金：吉林省教育厅科学技术研究项目(JJKH20170029KJ) 语种：中文; 页：ZLYY201902025 页数：8 CN：02 ISSN：22-1316/N 分类号：125-132

摘要

基于Solidworks软件对用于水射流切割机中的前混合磨料水射流磨料混合腔进行建模,结合流固耦合分析原理,利用Fluent软件进行混合腔腔体内部流场的数值模拟分析.比较腔体内部流场均匀性受侧进式进料方式和中进式进料方式的影响程度,分析高压水的入口角度、腔体收缩锥角度、磨料混合腔直径以及高压水入口位置对中进式进料方式腔体内部流场均匀性的影响.结果表明:在以相同进料速度进料时,中进式的出口磨料平均速度较侧进式要更高一些,更有利于磨料的充分加速;当高压水入口角度为37.5°,收缩锥角度为45°,磨料混合腔直径为50 mm,高压水入口位置为80 mm时流场的均匀性最佳.
        The pre-mixed abrasive water jet abrasive mixing chamber was modeled by solidworks. Numerical simulation analysis was carried out on the internal flow field through Fluent in combination with fluid-structure interaction theory.The flow field uniformity within the cavity was compared between side feed and medium feed.Analyzed the influence of flow field uniformity by high pressure water entry angle,cavity contraction cone angle,the diameter of the abrasive mixing chamber and high pressure water inlet position of the medium feed chamber.The results showed that when feed in the same velocity,the average velocity of the medium feed export is much higher than the side feed,and the medium feed is in favor of the full speed up the abrasive.When entry angle of the high pressure water entry angle is 37.5°,contraction cone angle is 45°,diameter of abrasive mixing cavity is50 mm,the inlet position of high pressure water is 80 mm,the flow field uniformity is the best.

引文

[1]苗思忠.前混合磨料射流清洗喷嘴内外流场的仿真研究[D].合肥:安徽理工大学,2017.
    [2]常宁,李宾飞.前混合磨料水射流的数值模拟[J].内蒙古石油化工,2015(20):17-19.
    [3]林晓东,卢义玉,汤积仁,等.前混合式磨料水射流磨料粒子加速过程数值模拟[J].振动与冲击,2015,34(16):19-24,47.
    [4]王艳芬,禹言芳,孟辉波,等.圆形喷嘴射流特性模拟方法优化选择[J].沈阳化工大学学报,2016,30(1):55-59.
    [5]刘国勇,陈欣欣,朱冬梅,等.前混合磨料水射流除鳞喷嘴混合腔内部流场[J].北京科技大学学报,2014,36(6):830-837.
    [6]刘丽红,张东速.高压水射流除锈技术[J].材料保护,1997,30(6):16-17.
    [7]刘庭成,刘焱,范晓红,等.前混合磨料连续水射流钢材除鳞除锈系统分析[J].冶金设备,2009(6):34-38,25.