Flow Boiling on Micropin Fins Entrenched Inside a Microchannel—Flow Patterns and Bubble Departure Diameter and Bubble Frequency

Autor:	Santosh Krishnamurthy, Yoav Peles
Rok vydání:	2010
Předmět:	Flow visualization Microchannel Materials science Mechanical Engineering Bubble Thermodynamics Mechanics Condensed Matter Physics Heat flux Mechanics of Materials Boiling General Materials Science Hydraulic diameter Two-phase flow Nucleate boiling
Zdroj:	Journal of Heat Transfer. 132
ISSN:	1528-8943 0022-1481
DOI:	10.1115/1.2994718
Popis:	Flow boiling of HFE 7000 in five parallel microchannels of 222 μm hydraulic diameter, each containing a single row of 24 in-line 100 μm pin fins, was investigated. High speed photography revealed the dominant flow patterns, namely, the bubbly flow, the multiple flow, and the wavy-annular flow. The interaction of the bubble with the pin fins during nucleate boiling from G=350 kg/m2 s to G=827 kg/m2 s and wall heat fluxes from 10 W/cm2 to 110 W/cm2 is detailed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b3d2b32dc1c1a2e6ed27e08d29bebab3 https://doi.org/10.1115/1.2994718 Zobrazit plný text záznamu