|
|||||
|
|
| 泡沫铝发泡过程三维数值模拟 | |
| 引用本文： | 刘红,解茂昭,史俊瑞,李科,王德庆.泡沫铝发泡过程三维数值模拟[J].大连理工大学学报,2008,48(6):819-824. |
| 作者姓名： | 刘红 解茂昭 史俊瑞 李科 王德庆 |
| 作者单位： | 1. 大连理工大学,能源与动力学院,辽宁,大连,116024 2. 沈阳工程学院,沈阳市循环流化床燃烧技术重点试验室,辽宁,沈阳,110136 3. 大连交通大学,材料科学与工程学院,辽宁,大连,116028 |
| 基金项目： | 国家自然科学基金 |
| 摘 要： | 应用计算流体力学方法模拟分析搅拌轴斜置情况下泡沫铝吹气发泡过程.在双流体模型基础上引入多重参考系法描述搅拌三维气液两相流场,考查了桨叶转速、气体流率及初始泡径对流场特性和气泡分布的影响.结果表明气体在叶片区有聚集,并且吸力面高于压力面,液面附近气泡在一定范围内分布较均匀.含气率随叶片转速和气体流率增大而增大,随气泡直径减小而增大. |
| 关 键 词： | 泡沫铝 多重参考系(MRF)法 气液两相流 数值模拟 气体体积分数 |
Three-dimensional simulation on production process of aluminum foams |
|
| LIU Hong,XIE Maozhao,SHI Junrui,LI Ke,WANG Deqing.Three-dimensional simulation on production process of aluminum foams[J].Journal of Dalian University of Technology,2008,48(6):819-824. | |
| Authors: | LIU Hong XIE Maozhao SHI Junrui LI Ke WANG Deqing |
| Affiliation: | LIU Hong1,XIE Mao-zhao1,SHI Jun-rui2,LI Ke1,WANG De-qing31.School of Energy , Power Engineering,Dalian University of Technology,Dalian 116024,China,2.Shenyang Key Laboratory on Circulating Fluidized Bed Combustion Technology,Shenyang Institute of Engineering,Shenyang 110136,3.School of Materials Science , Engineering,Dalian Jiaotong University,Dalian 116028 |
| Abstract: | Production process of aluminum foams by air injecting into molten aluminum composites and by mechanical stirring the melt has been investigated.A two-fluid model,incorporated with the multi-reference frame(MRF) method,is used to predict the three-dimensional gas-liquid flow in a vessel,in which a stirring axis is positioned inclined into the molten aluminum.Influences of impeller rotational speed,gas flow rate and bubble diameter on the characteristics of the liquid flow field and gas fraction distributions... |
| Keywords: | aluminum foam multi-reference frame(MRF) method gas-liquid flow numerical simulation gas volume fraction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《大连理工大学学报》浏览原始摘要信息 | |
| 点击此处可从《大连理工大学学报》下载全文 | |
