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带热障涂层高温导叶复合冷却数值研究
  • ISSN号：0253-231X
  • 期刊名称：《工程热物理学报》
  • 时间：0
  • 分类：TG174.4[金属学及工艺—金属表面处理;金属学及工艺—金属学]
  • 作者机构：[1]哈尔滨工业大学能源科学与工程学院
  • 相关基金：国家自然科学基金委创新研究群体(No.51121004);中国博士后基金(No.AUGA4100205011)
作者： 韩万龙[1], 颜培刚[1], 李超[1], 王晗[1], 韩万金[1]
关键词： 热障涂层, 变物性, 复合冷却, 不均匀温度进口
中文摘要：

本文以采用复合冷却方式的重燃一级静叶为研究对象,采用CFX软件求解雷诺时均N-S方程,应用标准K-Epsilon模型,考虑燃烧室不均匀出口温度、工质变物性、端壁冷却等因素,对加涂层静叶进行气热耦合计算,从整体和局部对比分析了热障涂层与其他冷却方式的复合冷却效果。结果表明,采用复合冷却方式,设置0.5 mm热障涂层可降低叶片金属表面温度100~350 K,满足合金使用要求。针对前缘气膜孔上游的小尺度高温热斑,本文指出其形成源于局部存在高温漩涡,通过合理匹配几何与气动参数可将之消除.

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期刊信息
  • 《工程热物理学报》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国工程热物理学会 中国科学院工程热物理研究所
  • 主编：徐建中
  • 地址：北京2706信箱
  • 邮编：100080
  • 邮箱：xb@mail.etp.ac.cn
  • 电话：010-62584937
  • 国际标准刊号：ISSN：0253-231X
  • 国内统一刊号：ISSN：11-2091/O4
  • 邮发代号:2-185
  • 获奖情况:
  • 中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:21026