| 封闭槽盒中电缆散热的差分干涉研究 |
| |
| 引用本文： | 任泽霈,赵子群,孟桂蓉.封闭槽盒中电缆散热的差分干涉研究[J].实验流体力学,1990(2). |
| |
| 作者姓名： | 任泽霈 赵子群 孟桂蓉 |
| |
| 作者单位： | 清华大学
(任泽霈，赵子群)，清华大学(孟桂蓉) |
| |
| 摘 要： | 本文报导了利用双像效应测相干光线分离距离的一种实验方法,使得在缺少有关光学参数情况下,仍可进行差分干涉图的定量计算。采用激光差分干涉仪对敷设在封闭槽盒中电缆群的自然对流换热进行了实验研究,得到了沿电缆表面局部 Nu 数的分布,与无限空间相同条件和相同工况时电缆表面的平均 Nu 数相比,约降低15%。
|
| 关 键 词： | 双像 差分干涉测量法 自然对流 努赛尔数` |
INVESTIGATION OF NATURAL CONVECTION IN ENCLOSURE WITH POWER CABLES BY DIFFERENTIAL INTERFEROMETRY |
| |
| Ren Zepei,Zhao Ziquing,Meng Guirong.INVESTIGATION OF NATURAL CONVECTION IN ENCLOSURE WITH POWER CABLES BY DIFFERENTIAL INTERFEROMETRY[J].Experiments and Measur in Fluid Mechanics,1990(2). |
| |
| Authors: | Ren Zepei Zhao Ziquing Meng Guirong |
| |
| Institution: | Tsinghua University |
| |
| Abstract: | Based on double image effect,an experimental method for measurement of seperation distance of interference rays is reportedin this paper.By this means quantitative estimation of the temperaturedistribution from a differential interferogram without data on re-fractive index n_o and n_e can be carried out.Natural convection in enclo-sure with power cables is investigated by differential interferometry,in this case the local Nusselt Numbers around the surface of the ca-bles are obtained.The average Nusselt Number decrease in about 15%in comparison with that for cable surrounded by air in the same Gr. |
| |
| Keywords: | double image differential interferometry natural convection nusselt number |
| 本文献已被 CNKI 等数据库收录！ |
|
