Application of cross recurrence plot for identification of temperature fluctuations synchronization in parallel minichannels

7th European Thermal-Sciences Conference

Grzybowski, H.^1 ; Mosdorf, R.^1

Department of Mechanics and Applied Computer Science, Bialystok University of Technology, ul. Wiejska 45C, Bialystok

15-351, Poland^1

关键词: Cross recurrences;    Flow boiling;    Mini-channels;    Temperature fluctuation;    Two-phase flow instabilities;    Wall temperatures;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/745/3/032126/pdf
DOI  :  10.1088/1742-6596/745/3/032126

来源: IOP

【 摘 要 】

The temperature fluctuations occurring in flow boiling in parallel minichannels with diameter of 1 mm have been experimentally investigated and analysed. The wall temperature was recorded at each minichannel outlet by thermocouple with 0.08 mm diameter probe. The time series where recorded during dynamic two-phase flow instabilities which are accompanied by chaotic temperature fluctuations. Time series were denoised using wavelet decomposition and were analysed using cross recurrence plots (CRP) which enables the study of two time series synchronization.