Results 21 to 30 of about 174,560 (265)

Electromagnetic-conductance measurement method for the flow rate and void fraction of gas-liquid two-phase flows

open access: yesMeasurement: Sensors, 2020
Gas-liquid two-phase flow systems are widely existed in many engineering systems and industrial processes, and measurement techniques for two-phase flows are crucial in a diverse range of engineering applications.
Fucheng Chang   +5 more
doaj   +1 more source

A new wellbore fluid load diagnosing model based on the energy conservation law

open access: yesNatural Gas Industry B, 2020
Liquid load in the borehole would affect the rate stability of gas well adversely. However, the existing liquid load detection techniques are somewhat limited by practical application.
Xinzhong Geng
doaj   +1 more source

Research on Liquid Holdup Measurement by Conductivity Method Based on Forced Annular Flow

open access: yesShiyou jixie, 2022
The accuracy of traditional conductivity method may be easily affected by flow pattern when it is used to measure the liquid holdup of gas-liquid two-phase flow.
Li Zhonghao   +4 more
doaj  

Flow Pattern and Resistance Characteristics of Gas–Liquid Two-Phase Flow with Foam under Low Gas–Liquid Flow Rate

open access: yesEnergies, 2021
To reduce the cost of arranging air foam flooding equipment at each wellhead, a method of establishing centralized air foam flooding injection stations is proposed.
Bin Wang   +4 more
doaj   +1 more source

Gas-liquid plug flow liquid holdup measurement using semantic segmentation

open access: yesYou-qi chuyun, 2021
Liquid holdup is one of the most important parameters of gas-liquid two-phase flow. Affected by the image noise, the traditional liquid holdup measurement method based on image processing is difficult to accurately extract the gas-liquid interface ...
Fachun LIANG   +4 more
doaj   +1 more source

Experimental Study and Prediction Modelling for Slippage Effect of Gas-Liquid Two-Phase Nozzle Flow

open access: yesShiyou jixie, 2022
In order to accurately predict the dynamic parameters of gas-liquid two-phase throttling production of wellbore,a physical simulation test device for gas-liquid two-phase nozzle flow was built.With this device,liquid holdups at different gas-liquid ...
Chen Zhengyu   +3 more
doaj  

Numerical simulation study of optimal inlet conditions of rectifier nozzle type distributor

open access: yesShipin yu jixie, 2022
Objective: In order to effectively improve or eliminate as much as possible in the refrigeration system, the uneven distribution of gas-liquid two-phase refrigerant in the evaporator leads to the performance decline of the refrigeration system.
SUN Huan   +3 more
doaj   +1 more source

Pressure Drop Hysteresis of Hydrodynamic States in Packed Tower for Foaming Systems

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2011
An experimental investigation was carried out to determine the effects of gas and liquid flow velocities and surface tension on the two-phase phase pressure drop a in a downflow trickle bed reactor.
Vijay Sodhi, Renu Gupta
doaj   +1 more source

Mathematical model for flow regime transition conditions of gas-liquid two-phase flow in natural gas reservoir fracture

open access: yesMeitan kexue jishu
The flow of gas-liquid two-phase flow in reservoir fractures may exhibit various flow regimes, such as bubble flow, slug flow, and annular mist flow. Identifying the conditions for the transition between these flow regime is essential for understanding ...
Jin YAN   +5 more
doaj   +1 more source

The Recognition Algorithm of Two-Phase Flow Patterns Based on GoogLeNet+5 Coord Attention

open access: yesMicromachines, 2023
The two-phase flow in a microchannel consists of liquid–liquid and gas–liquid material components. The automatic recognition of flow patterns using deep learning approaches has been emerging.
Jinsong Zhang   +2 more
doaj   +1 more source

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