基于LES方法的铝合金固溶炉湍流特征研究  

Research for the Turbulence Character in the Aluminum-alloy Solution Treatment Furnace Based on the LES Method

作　　者：张戈 萧琦 贺红娟[3] 李彬[3] 

机构地区：[1]中航工程集成设备有限公司,北京102206 [2]北京矿大节能科技有限公司,北京100083 [3]中国科学院工程热物理研究所,北京100190

出　　处：《陶瓷》2015年第3期22-26,共5页Ceramics

摘　　要：国内重大装备领域(如大飞机研制、陶瓷烧制)的快速发展对铝型材热处理水平的要求不断提高,笔者将通过经验公式和模拟仿真的手段,对铝合金固溶热处理炉进行了改进和延伸。考察了短循环结构和长循环结构内气体流场的分布情况,分析了静压箱楔板角度、底部水平结构、顶部中心处离布风栅板高度、布风栅板宽度以及栅板高度对内部流场的影响。数值模拟结果对铝合金固溶热处理炉的结构优化、操作条件等给出了建议。Requirement for the heat-treated capability of aluminum section is increasing due to the rapid development of the domestic aviation.This paper has studied the hydrodynamic flow character in heat treatment aluminum furnaces by the empirical formula and simulation methods to improve and extend the capability and application of the aluminum furnaces.The gas flow distribution of short and long full-loop structures is analyzed by considering the chamber wedge angle,the bottom level of the structure,the height from the top center to the air distribution,width and height of the gas distribution.The influence of different geometry on the flow character is calculated.At last,the structural optimization as well as recommended operating conditions is proposed.

关 键 词：铝合金固溶热处理炉 湍流 LES方法 

分 类 号：TQ174.6[化学工程—陶瓷工业]