Visual and dynamical measurement of Rayleigh-Benard convection by using fiber-based digital holographic interferometry

被引：3

作者：

Wang, Jun

Zhao, Jianlin ^{[1
]}

Di, Jianglei

Jiang, Yajun

Rauf, Abdul

Jiang, Hongzhen

机构：

[1] NW Polytech Univ, Sch Sci, Minist Educ, Shaanxi Key Lab Opt Informat Technol, Xian 710072, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2012年 / 112卷 / 11期

基金：

中国国家自然科学基金;

关键词：

BINARY-FLUID CONVECTION; STATES; FLOW;

D O I：

10.1063/1.4768911

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present a method for visual and dynamical measurement of the Rayleigh-Benard convection by using fiber-based digital holographic interferometry. A SM600 fiber with 4 mu m core diameter is used instead of conventional pinhole, which has better performance to filter out the noises, effectively modify the structure of the optical path and relax the requirement of the laser performance (e. g., coherence length and beam uniformity). The experimental results show the development process of Rayleigh-Benard cell in the container. The corresponding Rayleigh number is 3.6. In the process, the temperature at the top and bottom plates is controlled at 295 K and 300 K, respectively. The measured temperature distribution and the number of Rayleigh-Benard cell are verified by using simulation and are in good agreement. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4768911]

引用

页数：4