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点阵单元类型和排布角度对传热特性的影响

梁栋 陈伟 胡勇 张健鹏 邱民京

梁栋, 陈伟, 胡勇, 张健鹏, 邱民京. 点阵单元类型和排布角度对传热特性的影响[J]. 航空动力学报, 2022, 37(1): 26-35. doi: 10.13224/j.cnki.jasp.20210067
引用本文: 梁栋, 陈伟, 胡勇, 张健鹏, 邱民京. 点阵单元类型和排布角度对传热特性的影响[J]. 航空动力学报, 2022, 37(1): 26-35. doi: 10.13224/j.cnki.jasp.20210067
LIANG Dong, CHEN Wei, HU Yong, ZHANG Jianpeng, CHYU Minking. Influences of lattice unit type and arrangement orientation on heat transfer characteristics[J]. Journal of Aerospace Power, 2022, 37(1): 26-35. doi: 10.13224/j.cnki.jasp.20210067
Citation: LIANG Dong, CHEN Wei, HU Yong, ZHANG Jianpeng, CHYU Minking. Influences of lattice unit type and arrangement orientation on heat transfer characteristics[J]. Journal of Aerospace Power, 2022, 37(1): 26-35. doi: 10.13224/j.cnki.jasp.20210067

点阵单元类型和排布角度对传热特性的影响

doi: 10.13224/j.cnki.jasp.20210067
基金项目: 国家自然科学基金(51876132)
详细信息
    作者简介:

    梁栋(1990-),男,博士生,研究方向为航空发动机热防护技术。

    通讯作者:

    陈伟(1984-),男,副教授,博士,研究方向为叶轮机械气动热力学。E-mail:chenwei2017@scu.edu.cn

  • 中图分类号: V231.1

Influences of lattice unit type and arrangement orientation on heat transfer characteristics

  • 摘要: 基于瞬态液晶测试技术和数值仿真,在相同孔隙率条件下,研究了桁架型点阵结构的单元类型和排布角度对矩形通道壁面对流传热特性的影响。结果表明:点阵单元类型对壁面传热性能有决定性的影响,其中交叉排布的体心立方(body centered cubic-0,BCC-0)和Kagome-0点阵归因于出色的传热强化效果,雷诺数在5 700~17 100的范围内,其综合传热效率分别比柱肋阵列高出了9%~21%和4%~12%;而共线排布的面心立方点阵(face centered cubic,FCC)则都表现出较低的传热性能。在单元类型相同的条件下,选择合适的排布角度有利于进一步提高传热性能,其中Kagome-90和BCC-0分别比Kagome-0和BCC-45点阵的传热效率高3%~10%和5%~15%。

     

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出版历程
  • 收稿日期:  2021-02-15
  • 刊出日期:  2022-01-28

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