• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Heat transfer >Computational analysis of the thermal performance of rarefied air flow in V-shaped microchannels
【24h】

Computational analysis of the thermal performance of rarefied air flow in V-shaped microchannels

机译：v形微通道稀土气流热性能的计算分析

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, a computational fluid analysis of a slip flow developing thermally and hydrodynamically in a triangular microchannel has been considered. The wall of the channel is preserved at a fixed temperature. Temperature jump and velocity slip boundary conditions are imposed on the surfaces. The micro-channel is constructed from seven triangular-shaped channels and the angle of the microchannel (0) is varied from 0° to 40°. Simulations are carried out for 1 ≤ Re ≤ 8, 0 ≤ Kn ≤ 0.1, and the air is used as a working fluid with variable physical properties. The simulation results show that the triangular micro-channel can improve heat transfer as compared with plain microchannels. An optimal 8 of 20° is found to provide the best heat transfer at moderate frictional losses. Finally, correlations for the average Nusselt number and the average friction coefficient among all parameters are proposed as follows: Nu = 4.015Re~(0.0255) Kn~(-0.1) (sinθ)~(0.0479),C_f = 3.71Re~(-1.218) Kn~(-0.296)(sinθ)~(0.495).
机译：在该研究中，已经考虑了在三角形微通道中产生热和流体动力学的滑动流体的计算流体分析。通道的壁保持在固定温度下。温度跳跃和速度滑动边界条件施加在表面上。微通道由七个三角形通道构成，并且微通道（0）的角度从0°变化到40°。进行仿真1≤Re≤8，0≤kN≤0.1，并且空气用作具有可变物理性质的工作流体。仿真结果表明，与普通微通道相比，三角微通道可以提高热传递。发现最佳8 of 20°为适度的摩擦损失提供最佳的热传递。最后，提出了所有参数中的平均露天数量和平均摩擦系数的相关性：nu = 4.015重〜（0.0255）Kn〜（-0.1）〜（0.0479），C_F = 3.71重〜（ - 1.218）KN〜（-0.296）（SINθ）〜（0.495）。

著录项

  • 来源
    《Heat transfer》 |2021年第4期|3977-3995|共19页
  • 作者

    Montasir Hader; Wael Al-Kouz; Suhil Kiwan; Aiman Alshare; Ali Chamkha;

  • 作者单位

    Aeronautical Engineering Department Jordan University of Science and Technology Irbid Jordan Jordan;

    Department of Mechanical Engineering Prince Mohammad Bin Fahd University Al-Khobar Saudi Arabia;

    Department of Mechanical Engineering Jordan University of Science and Technology Jordan;

    Department of Mechanical and Maintenance Engineering German Jordanian University Amman Jordan;

    Department of Mechanical Engineering Kuwait College of Science and Technology Kuwait Kuwait;

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

    Knudsen number; slip velocity; temperature jump; triangular channel;

    机译：Knudsen号码;滑动速度;温度跳;三角频道;

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