... theoretical analysis and numerical simulation. Employing the Euler-Bernoulli beam model in conjunction with the Generalized Integral Transform Method (GITT), the study provides a detailed examination of the impacts of flow parameters, including liquid-phase density, viscosity, and void fraction on the linear...

...-induced forces acting on the bends walls. The study examines the effects of varying liquid flow rates in the mixture ratio, which ranged from 1 to 5 at the inlet. With increasing liquid mass flow rates, the bends altered the gas-liquid flow patterns. Across all flow conditions, the RMS void fraction...

... such as bubble/droplet size distributions. reservoir simulation gravitational potential energy void fraction evolution air entrainment wave breaking energy dissipation entrainment grid refinement level steepness fluid mechanics total energy upstream oil & gas computational domain...

... the Reynolds equations for turbulent flow fields and employs the volume-of-fluid (VOF) method to track free surfaces. The integral properties of bubble plume are investigated and compared with the experimental data. The void fraction distributions are examined and the relationship between the void fractions...

... on the vertical wall of model above the still water level. Bubble image velocimetry (BIV) was used to reveal the aerated flow field. Fiber optic reflectometer (FOR) was applied to measure the void fraction in front of the end surface of each pressure surface. Notably, BIV, FOR, and pressure measurements were...

... & Prosperetti, 1989; Prosperetti, Crum, & Commander, 1988) used to comprehend the size and void fraction of bubbles how to affect the absorption of the low-frequency noise. But for the lower frequency, bubbles that resonate near 100 Hz, corresponding to radius was several centimeters. Unfortunately, the several...

... and in aerated water. There is significant reduction of the maximum pressures from those measured in pure water to those measured in aerated water. KEY WORDS: Slamming; pressure; force; jet formation; aeration; void fraction. INTRODUCTION Slamming of an impact plate into pure water has been investigated over...

... ABSTRACT: This work presents a novel fiber-optic sensing system to measure the local air-volume (void) fraction of bubbly flows caused by breaking waves near a submerged breakwater. Initially, a sensing system with a single fiber-optic probe is developed to detect the local void fractions...

... void fraction equation liquid-ga physical parameter pipeline-riser system simulation surface tension pipeline-riser system song gao 1 kerosene fraction liquid upstream oil & gas riser slug production us government physical parameter Influence of Liquid-Gas Physical Parameters...

... ABSTRACT The present study investigates the void fraction as well as velocity of an overtopping flow on a structure through laboratory measurements. The overtopping green water was generated by the impingement of a plunging breaking wave on the structure. The flow is multi-phased and turbulent...

... crust pipe line flow quantity production monitoring static pressure methane gas methane hydrate multiphase flow inlet pressure enthalpy two-phase flow dynamic distribution factor hydrate upstream oil & gas fluid dynamics void fraction pressure change Proceedings of the Eleventh...

... Measurements of bubbles caused by wave breaking processes under various sea-state conditions were made by the Naval Research Laboratory during the Sandy Duck "97 Experiment at Duck, NC. Eight arrays consisting of void fraction meters, acoustic resonators, and thermistors were deployed in an area...

... upstream oil & gas liquid level gas recycling gas removal enhanced recovery void fraction separation gas cycling pipe production control production logging impeller underwater-welding appfication coefficient production monitoring volumetric flow rate reservoir surveillance welding...

... from 0.083 Nm 3 /s to 0.75 Nm 3 /s, corresponding in scale to that expected from a full pipeline rupture or blowouts from shallow pockets. Measurements of water velocities and void fractions were performed in the vertical bubble plume and in the horizontal surface flow. The gas concentration above...

... for the technique that directly measures the percentage of air content (void fraction) under a pre-fixed depth below the sea surface The data form such void fraction measurements conducted in the open sea under moderate to high sea state were processed to obtain several breaking wave statistics A comparison...

... pressure drop upstream oil & gas back emf magnetic field production control current density fluid velocity conductivity test section production monitoring magnet flowrate reservoir surveillance expenment void fraction thruster Proceedings of the Fourth (1994) International Offshore...

.... Typical results show that the higher the Froude number, the larger the shear stress, void fractions and pressure drops respectively. It is also concluded that flow conditions and fluid properties have significant effects on the slug flow characteristics. Key words: multiphase flow, stationary slug, slug...

... is the transit time of the front between the measuring stations and ai is the void fraction in the liquid body at station i. The velocities V are defined in figure 6. The final value for the entrainment rates in one ex- periment is taken as the mean of all the computed values. This method of analysis is based...

... void fraction from the on- line system corresponds with the results from the time trace analysis. In the online computations in this case a high trigger level was set to discriminate the slugs with a characteristic low holdup. These were captured by the time trace analysis with a low trigger level...

... are not unusual), and favour the choice of development schemes based on few, high flowrate subsea completions. module differential pressure multiphase production recoverable reserve installation void fraction hydraulic jet pump subsea system upstream oil & gas hydrobooster system platform...