The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회지:설비저널)
- Volume 17 Issue 4
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- Pages.342-349
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- 1988
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- 1229-6430(pISSN)
Characteristics of Flow Regime Transitions in Horizontal Gas-Liquid Two-Phase Flow
수평 기액2상유동에서 유동양식의 천이특성
Abstract
The characteristics of flow pattern transitions in a horizontal cocurrent gas-liquid flow have been investigated by means of a statistical analysis of instantaneous pressure drop curves at an orifice. The dimensionless intensity of pressure drop fluctuation shows a sudden change during the course of flow transitions, indicating that it may be a good measure to identify the flow regime transitions. The probability density function of the curves feature a unique pattern depending upon the flow regimes and the statistical properties of the PDF also have particular ranges for each flow regime. In conclusion, the statistical analysis of instantaneous pressure drops may be a powerful tool for predicting the flow regime transitions.
Keywords