| 粉尘粒径对多孔环形喷嘴分散特征的影响 |
| |
| 引用本文： | 丁建旭,杜群贵,吴雨蒙,陈冬青,王新华.粉尘粒径对多孔环形喷嘴分散特征的影响[J].消防科学与技术,2019(5):603-606. |
| |
| 作者姓名： | 丁建旭 杜群贵 吴雨蒙 陈冬青 王新华 |
| |
| 作者单位： | 广州特种机电设备检测研究院国家防爆设备质量监督检验中心;华南理工大学机械与汽车工程学院;广东工业大学机电工程学院 |
| |
| 基金项目： | 国家重点研发计划项目(2017YFC0804705) |
| |
| 摘 要： | 为了对比不同可燃爆粉尘粒径在基于多孔环形喷嘴的20 L爆炸装置中的分散特征,采用ICEM对计算模型进行局部加密的非结构网格划分,结合耦合时间平均Navier-Stokes控制方程组和DPM动量平衡方程,实现了不同粒径铝粉(50、100、250μm)在20 L爆炸仓中分散全过程的三维数值模拟。结果表明:基于多孔环形喷嘴的20 L爆炸仓内的粉尘云空间分布较为均匀,但粉尘粒径越大,多孔环形喷嘴的约束管道内残留可燃爆粉尘越多,爆炸仓中心位置的真实浓度越低于形式浓度。
|
| 关 键 词： | 粒径 分散过程 数值模拟 球形爆炸装置 |
Effect of dust particle size on the dispersion characteristics of perforated annular nozzle |
| |
| DING Jian-xu,DU Qun-gui,WU Yu-meng,CHEN Dong-qing,WANG Xin-hua.Effect of dust particle size on the dispersion characteristics of perforated annular nozzle[J].Fire Science and Technology,2019(5):603-606. |
| |
| Authors: | DING Jian-xu DU Qun-gui WU Yu-meng CHEN Dong-qing WANG Xin-hua |
| |
| Affiliation: | (China National Quality Supervision and Testing Center of Explosion-proof Equipment,Guangzhou Academy of Special Equipment Inspecti on &. Testi ng,Guangdong Guangzhou 510760,China;School of Mechanical & Automotive Engineering,SouthChina University of Technology,Guangdong Guangzhou 510006,China;School of Electro Mechanical Engineering,GuangdongUniversity of Technology,Guangdong Guangzhou 510006,China) |
| |
| Abstract: | DING Jian-xu;DU Qun-gui;WU Yu-meng;CHEN Dong-qing;WANG Xin-hua(China National Quality Supervision and Testing Center of Explosion-proof Equipment,Guangzhou Academy of Special Equipment Inspecti on &. Testi ng,Guangdong Guangzhou 510760,China;School of Mechanical & Automotive Engineering,SouthChina University of Technology,Guangdong Guangzhou 510006,China;School of Electro Mechanical Engineering,GuangdongUniversity of Technology,Guangdong Guangzhou 510006,China) |
| |
| Keywords: | dust explosion particle size dispersion process numerical simulation explosion apparatus |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
