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材料导报  2019, Vol. 33 Issue (Z2): 463-467    
  金属与金属基复合材料 |
低雾化气压对喷射成形雾化过程的影响
余雷, 王辉, 单兵, 姚炜峰, 唐姝文, 张俊, 陈业高
宿迁学院机电工程学院,宿迁 223800
Effect of Low Gas Pressure on Atomization Process of Spray Forming
YU Lei, WANG Hui, SHAN Bing, YAO Weifeng, TANG Shuwen, ZHANG Jun, CHEN Yegao
School of Mechanical and Electrical Engineering, Suqian College, Suqian 223800
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摘要 利用计算流体动力学(CFD)软件Fluent模拟分析低气体压力对雾化过程压力场、速度场和温度场的影响规律,并通过实验验证,为喷射成形雾化过程气体压力参数的选择和实验的可行性研究提供理论依据。结果表明:气体压力为3.0×105 Pa时,导流管出口处压力达到极小值,为1.16×105 Pa,雾化颗粒200~500 μm,初晶Si颗粒3~7 μm,雾化效果最佳。当气体压力在2.0×105~4.0×105 Pa范围内时,气体压力越大,“驻点”的总压力和速度越小,气流交汇处总压力和速度越大,雾化颗粒冷却速度越快。
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余雷
王辉
单兵
姚炜峰
唐姝文
张俊
陈业高
关键词:  雾化流场  低雾化气压  数值模拟    
Abstract: The effects of the atomization gas pressure on the pressure, velocity and temperature fields were analyzed by Fluent, providing theoretical basis for the selection of pressure parameters and feasible research on experimental in spray forming process. The simulation results show that the pressure at nozzle exit approaches the minimum value of 1.16×105 Pa when the gas pressure is 3.0×105 Pa. At this condition, atomized particles of 200—500 μm and primary Si particles of 3—7 μm were got. When the gas pressure is in the range of 2.0×105—4.0×105 Pa, the total pressure and velocity of the “stagnation” decrease, and the total pressure and velocity of the intersection and the cooling velocity increase with the gas pressure increasing.
Key words:  atomization flow field    low gas pressure    numerical simulation
               出版日期:  2019-11-25      发布日期:  2019-11-25
ZTFLH:  TG146  
基金资助: 江苏省高等学校自然科学面上项目(19KJB430035);江苏省大学生创新创业基金项目(201914160008Z)
通讯作者:  chenyegao0611@163.com   
作者简介:  余雷,研究方向为材料成型与控制工程专业。
陈业高,博士,江苏省铸造学会副秘书长、熔模铸造专委会秘书长。主要从事连续挤压与连续喷射挤压方面的研究。主持江苏省高校自然科学面上项目1项,参与完成国家科技支撑计划项目1项,国家自然科学基金2项,云南省参与支持国家科技计划项目1项,企业委托项目2项。在国内外核心刊物发表论文20余篇,其中SCI/EI论文10余篇,申请专利20余项,授权发明专利9项。
引用本文:    
余雷, 王辉, 单兵, 姚炜峰, 唐姝文, 张俊, 陈业高. 低雾化气压对喷射成形雾化过程的影响[J]. 材料导报, 2019, 33(Z2): 463-467.
YU Lei, WANG Hui, SHAN Bing, YAO Weifeng, TANG Shuwen, ZHANG Jun, CHEN Yegao. Effect of Low Gas Pressure on Atomization Process of Spray Forming. Materials Reports, 2019, 33(Z2): 463-467.
链接本文:  
http://www.mater-rep.com/CN/  或          http://www.mater-rep.com/CN/Y2019/V33/IZ2/463
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