• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Heat and Mass Transfer >A numerical study on various pin-fin shaped surface air-oil heat exchangers for an aero gas-turbine engine
【24h】

A numerical study on various pin-fin shaped surface air-oil heat exchangers for an aero gas-turbine engine

机译：航空燃气轮机各种销形表面空气-油热交换器的数值研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this study, the performance of a surface air-oil heat exchanger for an aero gas-turbine engine having plate- and pin-fin shaped geometries was investigated numerically. Basic heat-transfer and pressure-drop characteristics were examined using a simplified channel model. Performance of pin-shaped fins is compared with that of the plate fin as a baseline. Using a parametric study, optimal fin pitches of the pin-fin geometries in stream- and span-wise directions were determined. Finally, the high-speed bypass effect of the surface air-oil heat exchanger was calculated using the geometry of a real engine. Aero-thermal performance for such as the heat transfer rate, pressure-drop along the bypass stream of the engine, and distorted velocity boundary layer profiles, were evaluated quantitatively. The entropy generation rate due to the surface air-oil heat exchanger is summarized to assess the irreversibility loss inside the bypass stream and the cooler region.
机译：在这项研究中，对具有板翅形和销翅形几何形状的航空燃气涡轮发动机的表面空气-油热交换器的性能进行了数值研究。使用简化的通道模型检查了基本的传热和压降特性。将销形散热片的性能与作为基准的平板散热片的性能进行比较。通过参数研究，确定了沿流向和跨度方向的针式翅片几何形状的最佳翅片间距。最后，使用实际发动机的几何结构计算了地面空气-油热交换器的高速旁路效果。定量评估了空气热性能，例如传热速率，沿发动机旁通流的压降和速度边界层变形的情况。总结归因于地面空气-油热交换器的熵产生速率，以评估旁路流和较冷区域内部的不可逆损失。

著录项

  • 来源
  • 作者

    Minsung Kim; Man Yeong Ha; June Kee Min;

  • 作者单位

    School of Mechanical Engineering, Pusan National University, 2, Busandaehak-ro 63beon-gil, Busan 46241, Republic of Korea;

    School of Mechanical Engineering, Pusan National University, 2, Busandaehak-ro 63beon-gil, Busan 46241, Republic of Korea;

    Rolls-Royce and Pusan National University Technology Centre in Thermal Management, Pusan National University, 2, Busandaehak-ro 63beon-gil, Busan 46241, Republic of Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Surface air-oil heat exchanger; Aero gas-turbine engine; Bypass effect;

    机译：地表油气热交换器;航空燃气涡轮发动机;旁路效果;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号