Yasushi Saito

TL;DR: In this article, the authors derived the interfacial measurement theorem relating the local instantaneous interfacial velocity to local measurable velocities of the multi-sensor probe in the improvement and proposed an interface-pairing signal processing scheme to identify the same interfaces from the sequential signals detected by different sensors.

TL;DR: In this article, the authors used high-frame-rate neutron radiography and four-sensor probe to observe the bubble-probe interaction in liquid-metal two-phase flow and found that cap bubbles or elongated slug bubbles were dominant at the superficial gas velocity of 1.1-38.3 cm/s.

TL;DR: In this article, an adiabatic upward co-current air-water two-phase flow in a vertical large diameter pipe (inner diameter, D: 0.2m, ratio of pipe length to diameter, L/D: 60.5) was experimentally investigated under various inlet conditions.

TL;DR: In this paper, an oscillatory flow (CHF) at relatively low mass flux and at low pressure is described, where CHF is a decreasing function of the amplitude and period of the flow oscillation, and reaches almost 40 % of the steady state value.

TL;DR: In this article, a momentum exchange model based on conventional correlations for ordinary gas-liquid flows, such as an air-water system, is proposed to predict the two-phase flow behaviors with high liquid-to-gas density ratios formed during a CDA.