Aiming to study the characteristics and mechanism of oil-water two-phase flow, based on method dissipative particle dynamics (DPD), meso-scale models pressure-driven flow in quartz slits with width 5-15 nm were simulated. Water is driving phase. The results show that, as liquid flew, it stratified gradually. stratification came earlier width, force increased. slit 5 was slug while velocity prof...

This contribution presents and investigates the effects of air entrainment compressibility on shape magnitude wave impacts occurring at crown walls top sea defenses. To this purpose, a new solver, developed in OpenFoam environment to represent interactions with impermeable porous coastal structures, accounting for fluid compressibility, is checked against recent laboratory tests overtopping imp...

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An experimental investigation was conducted to simultaneously measure the instantaneous velocities of large particles and air in two-phase flow using Laser Doppler Velocimeter. Measurements at two Photo-Multiplier voltage settings are used to separate the signals from the small seeding particles that trace the air flow and the suspended solid particle based on the difference of scattered light ...

Erosion caused by sand transportation in flow changing devices is a serious concern in the hydrocarbon and mineral processing industry, which entail to failure and malfunction of flow devices. In this study, computational fluid dynamics (CFD) with discrete phase models (DPM) were employed for analysis of carbon steel long radius 90-Degree elbow erosion due to the sand concentration of 2, 5 and ...

• A numerical scheme is proposed for the direct simulation of complex solid-liquid-gas three-phase flows. coupled LBM-DEM model ensuring mass conservation proposed. The upward migration bubbles through a brine-filled sediment column successfully simulated at various conditions. Simulation results indicate three different flow regimes: connected finger flow, transition and dispersed bubbly flow....

A review of the work conducted on particle interactions with turbulent flows provides a basis for the continued development of the diagnostics. Flow visualization techniques have provide insights to the global characteristics of the particle interaction with large scale eddies. Recent experiments conducted by a number of researchers in the field were reviewed. These data served to evaluate meri...