• 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 >Field synergy equation for turbulent heat transfer and its application
【24h】

Field synergy equation for turbulent heat transfer and its application

机译：湍流传热的场协同方程及其应用

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

A field synergy equation with a set of specified constraints for turbulent heat transfer developed based on the extremum entransy dissipation principle can be used to increase the field synergy between the time-averaged velocity and time-averaged temperature gradient fields over the entire fluid flow domain to optimize the heat transfer in turbulent flow. The solution of the field synergy equation gives the optimal flow field having the best field synergy for a given decrement of the mean kinetic energy, which maximizes the heat transfer. As an example, the field synergy analysis for turbulent heat transfer between parallel plates is presented. The analysis shows that a velocity field with small eddies near the boundary effectively enhances the heat transfer in turbulent flow especially when the eddy height which are perpendicular to the primary flow direction, are about half of the turbulent flow transition layer thickness. With the guide of this optimal velocity field, appropriate internal fins can be attached to the parallel plates to produce a velocity field close to the optimal one, so as to increase the field synergy and optimize the turbulent heat transfer.
机译：基于极值换能耗散原理开发的具有一组指定约束的湍流传热约束的场协同方程，可用于在整个流体流域上将时均速度和时均温度梯度场之间的场协同提高到整个流体流域。优化湍流中的热传递。对于给定的平均动能递减，场协同方程的解给出了具有最佳场协同的最佳流场，从而使热传递最大化。例如，提出了平行板之间湍流传热的场协同分析。分析表明，在边界附近具有较小涡流的速度场有效地增强了湍流中的热传递，特别是当垂直于主流方向的涡流高度约为湍流过渡层厚度的一半时。在该最佳速度场的引导下，可以将合适的内部散热片连接到平行板上以产生接近最佳速度场的速度场，从而增加场协同作用并优化湍流传热。

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