|
|||||
|
|
| 厚板射流冲击下淬火冷却的换热系数建模计算 | |
| 引用本文： | 邓运来,贺有为,曹盛强,张新明.厚板射流冲击下淬火冷却的换热系数建模计算[J].航空材料学报,2011,31(5). |
| 作者姓名： | 邓运来 贺有为 曹盛强 张新明 |
| 作者单位： | 1. 中南大学材料科学与工程学院,长沙410083;广西南南铝加工有限公司,南宁530031 2. 中南大学材料科学与工程学院,长沙,410083 3. 广西南南铝加工有限公司,南宁,530031 |
| 基金项目： | 国家重点基础研究计划资助项目(2005CB623700) |
| 摘 要： | 建立一种多喷嘴同时喷射淬火冷却的数学模型,通过实测冷却曲线分析计算厚板驻点区与紊流区换热系数分布规律,基于ABAQUS模拟软件模拟验证模型。结果表明:驻点与紊流点处的换热系数随时间分布是不均匀的,在10～20 s内出现峰值,随后呈上下波动变化的规律;实测(或计算)试样心部与表面的冷却曲线与模拟的吻合较好,验证了多喷嘴同时喷射下的换热系数分布模型。 |
| 关 键 词： | 铝合金厚板 换热系数 ABAQUS模拟 射流冲击 |
Model Calculation of Heat Transfer Coefficient of Quenched Cooling under Jet Impingment Plate |
|
| DENG Yun-lai,HE You-wei,CAO Sheng-qiang,ZHANG Xin-ming.Model Calculation of Heat Transfer Coefficient of Quenched Cooling under Jet Impingment Plate[J].Journal of Aeronautical Materials,2011,31(5). | |
| Authors: | DENG Yun-lai HE You-wei CAO Sheng-qiang ZHANG Xin-ming |
| Institution: | DENG Yun-lai1,HE You-wei1,CAO Sheng-qiang1,2,ZHANG Xin-ming1 (1.School of Materials Science and Engineering,Central South University,Changsha 410083,China,2.Guangxi Alnan Aluminium Fabrication CO.LTD,Nanning 530031,China) |
| Abstract: | The quenched cooling heat transfer process of the thick plate by multi-nozzle jet impinging is extremely complicated,thus it is difficult to establish a model of the surface heat transfer coefficient distribution,which reveals the speed of the heat transfer on the jet impinging surface.In this paper,the mathematical model of multi-nozzle jet simultaneously impinging quenched cooling has been established,coefficient distribution law at the stagnation and turbulent zone has been calculated by actual measureme... |
| Keywords: | aluminum alloy plate heat transfer coefficient ABAQUS simulation jet-impinging |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |