Influence of roughness on heat transfer of pin-fin with lamilloy structure

LI Guangchao; JIANG Wei; LIU Yongquan; ZHANG Wei; KOU Zhihai

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Influence of roughness on heat transfer of pin-fin with lamilloy structure

Thermal Power Generation Issue 4, (2017)

更新时间：2025-09-28

- Influence of roughness on heat transfer of pin-fin with lamilloy structure
- 作者机构：
  
  1. 沈阳航空航天大学辽宁省航空推进系统先进测试技术重点实验室,辽宁,沈阳,110136
  2. 中国航空发动机集团沈阳发动机设计研究所,辽宁,沈阳,110015
- 作者简介：
- 基金信息：
- DOI：
  CLC： V231.1
- Published Online：26 April 2017，
  
  Published：2017
- 稿件说明：
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LI Guangchao, JIANG Wei, LIU Yongquan, et al. Influence of roughness on heat transfer of pin-fin with lamilloy structure[J]. Thermal Power Generation, 2017, (4).
DOI：

LI Guangchao, JIANG Wei, LIU Yongquan, et al. Influence of roughness on heat transfer of pin-fin with lamilloy structure[J]. Thermal Power Generation, 2017, (4). DOI：

摘要

为了探讨精密铸造涡轮叶片内部表面粗糙度对扰流柱换热特性的影响，在冲击雷诺数Re为1×104~5×104下，数值模拟了粗糙度分别为0、10、20、30 μm的典型层板结构内扰流柱表面换热系数。结果表明：粗糙度对扰流柱表面换热系数的影响主要集中在迎风面上；粗糙度增加使扰流柱表面平均换热系数增大；Re越大，粗糙度对换热系数的影响越明显，Re从1×104增加到5×104，粗糙度为30 μm的平均换热系数相比于光滑扰流柱面提高了13%~134%。

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