Study of the behavior of ephemeral waves in gas-liquid two-phase flow: I. Determination of sub-wave-veins

Autor:	Kotohiko Sekoguchi, Koji Mori, Tadayoshi Matsumoto, Yoshiyuki Kondo
Rok vydání:	2001
Předmět:	Fluid Flow and Transfer Processes Flow conditions Meteorology Wave propagation Ephemeral key Multiphase flow Perturbation (astronomy) Two-phase flow Mechanics Condensed Matter Physics Geology Pipe flow Liquid holdup
Zdroj:	Heat Transfer?Asian Research. 30:114-125
ISSN:	1523-1496 1099-2871
DOI:	10.1002/1523-1496(200103)30:2<114::aid-htj3>3.0.co;2-n
Popis:	Time-spatial measurements of liquid holdup distributions along the axis of a tube were carried out over the length of 1325 mm in upward gas-liquid two-phase flow. In order to clarify the characteristics of the behavior of ephemeral waves, a method of determining sub-wave-veins, that is, the traces of ephemeral waves on the time-spatial behavior charts of the interface, was developed. This method was applied to the flow conditions in huge wave flow and annular flow regimes, and the sub-wave-veins in these flow regimes were successfully determined. Time-spatial behavior charts of the interface with determined sub-wave-veins were systematically presented and the characteristics of sub-wave-veins were discussed. Close inspection of the behavior of sub-wave-veins reveals that there are two types of ephemeral waves: one has a shorter life span and the other has a longer life span during which absorption and discharge of small ephemeral waves occurs
Databáze:	OpenAIRE
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