Abstract
The fluid pulsation behind a prism is closely concerned with the design and operation of gas-liquid two-phase flow systems. This paper explored the property of such fluid pulsations in a horizontal pipe using air and water as the tested media. The pressure difference between the upstream and downstream of the prism was adopted to represent the characteristics of the fluid pulsation. Based on the experimental results, it is found that there exit obvious pulsations in the fluid behind the prism in annular flows, and this pulsation is more marked at low gas mass qualities than those at high gas mass qualities. Furthermore, the average pressure basically decreases with the gas mass quality and increases with the gas-liquid total mass flowrate. These findings could be useful for the analysis of flowing characteristics in gas-liquid annular flow across a prism.
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