Recurrence analysis of phase distribution changes during boiling flow in parallel minichannels

被引：2

作者：

Rafalko, Gabriela ^{[1
]}

Grzybowski, Hubert ^{[1
]}

Dzienis, Pawel ^{[1
]}

Zaborowska, Iwona ^{[1
]}

Mosdorf, Romuald ^{[1
]}

Litak, Grzegorz ^{[2
]}

机构：

[1] Bialystok Tech Univ, Fac Mech Engn, Wiejska 45 C, PL-15351 Bialystok, Poland

[2] Lublin Univ Technol, Dept Appl Mech, Nadbystrzycka 36, PL-20618 Lublin, Poland

来源：

EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS | 2023年 / 232卷 / 01期

关键词：

MALDISTRIBUTION; CHANNELS;

D O I：

10.1140/epjs/s11734-022-00741-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In the paper, flow boiling in three parallel minichannels with a common inlet and outlet area was examined. The synchronization between flow distributions in minichannels was analyzed in local area (image analysis) and as the process of the synchronization between inlet and outlet pressure fluctuations. These processes were studied using cross recurrence plot. The analysis of pixel brightness changes inside minichannels has been applied to identify the similarity of flow patterns changes inside minichannels. The results have revealed that the processes of synchronization have a negative impact on water inlet and outlet temperature and inlet and outlet pressure oscillations. During synchronization high amplitude of oscillations of temperature and pressure occur. The mentioned behaviors are caused mainly by reverse flow. In the paper it has been shown that recurrence analysis of inlet and outlet pressure oscillations can be used for assessment of boiling synchronization in minichannels.

引用

页码：201 / 207

页数：7

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