Abstract: Pressure drop has been measured for upward single- and two-phase gas–liquid flow across an orifice in a vertical pipe. A conductance probe provided average void fraction upstream of the orifice. Six orifices with different ...

Abstract: In horizontal configuration, the gas-liquid intermittent flow can be plug flow or slug flow. Different works have demonstrated that the two flow patterns, despite their similarity, are differents. Thus, it is important to ...