• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Renewable and Sustainable Energy Conference >Convective Heat Transfer Performance of Nanofluid in a Horizontal Annular Duct Considering Nanoparticles Shapes Effect
【24h】

Convective Heat Transfer Performance of Nanofluid in a Horizontal Annular Duct Considering Nanoparticles Shapes Effect

机译：考虑纳米颗粒形状效应的纳米流体在水平环形管道中的对流换热性能

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In The present study investigates laminar forced convection heat transfer in a concentric annular space saturated with nanofluids. The inner cylinder is adiabatic while the outer cylinder is uniformly heated. The governing equations with the appropriate boundary conditions are discretized by the finite volume method with second order precision and solved by using the SIMPLER and Thomas algorithms. The effects of some parameters such as the nanoparticles types Ag and CuO, the shapes like blades, platelets, cylinder and bricks, and nanofluid volume fraction on heat transfer are completely studied and discussed. The results show that the Nusselt number, the bulk, and wall temperatures increase with the increase of nanoparticle volume fraction. A linear increase is observed for the average Nusselt number by increasing the volume fraction. Silver nanoparticles Ag give better heat transfer compared with the CuO nanoparticles for the blade shape followed by the elongated shape like platelet and cylinder and in last place brick shape.
机译：在本研究中，研究了纳米流体饱和的同心环形空间中的层流强迫对流换热。内圆柱体是绝热的，而外圆柱体是均匀加热的。具有适当边界条件的控制方程通过有限体积方法以二阶精度离散化，并使用SIMPLER和Thomas算法进行求解。完整地研究和讨论了诸如纳米颗粒类型Ag和CuO，叶片，薄片，圆柱体和砖块的形状以及纳米流体体积分数等参数对传热的影响。结果表明，随着纳米粒子体积分数的增加，Nusselt数，体积和壁温均增加。通过增加体积分数，可以观察到平均努塞尔数呈线性增加。银的纳米粒子银与铜纳米粒子相比具有更好的传热性能，叶片形状为叶片状，随后为细长的形状，如片状和圆柱状，最后是砖状。

著录项

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