High-speed IR thermography of submerged turbulent water jets

被引：0
|
作者：
Znamenskaya, I. [1 ]
Koroteeva, E. [1 ]
Novinskaya, A. [1 ]
Sysoev, N. [1 ]
机构：
[1] Lomonosov Moscow State Univ, Leninskie Gory,1, Moscow 119991, Russia
来源：
13TH QUANTITATIVE INFRARED THERMOGRAPHY CONFERENCE | 2016年
关键词：
CONVECTIVE HEAT-TRANSFER; 2-DIMENSIONAL TURBULENCE;
D O I：
10.21611/qirt.2016.063
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
This work explores the potential of high-speed infrared (IR) thermography to analyze a turbulent water boundary layer in submerged jet flows. In the experiments, the IR camera (FLIR Systems SC7700) is focused on the inner side of an IR-transparent vessel window, providing high-speed (100 Hz) recordings of heat fluxes from a thin water layer close to the window. The temperature variations are shown to act as a passive tracer in the considered turbulent flows. The power spectra of the turbulent fluctuations are calculated for different points in the near-surface flows and compared to the existing theoretical turbulence models.
引用
收藏
页码：433 / 439
页数：7
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