Numerical simulation of two phase refrigerant flow through non-adiabatic capillary tubes using drift flux model

2018 ◽  
Vol 32 (1) ◽  
pp. 381-389
Author(s):  
Masoud Zareh ◽  
Morteza Khayat ◽  
Hamed Fouladi
Keyword(s):  
Numerical Simulation ◽  
Capillary Tubes ◽  
Two Phase ◽  
Drift Flux Model ◽  
Drift Flux ◽  
Flux Model ◽  
Flow Through

Numerical simulation of gas-liquid two-phase flow in wellbore based on drift flux model

2018 ◽  
Vol 338 ◽  
pp. 175-191 ◽  
Author(s):  
Na Wei ◽  
Chaoyang Xu ◽  
Yingfeng Meng ◽  
Gao Li ◽  
Xiao Ma ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Drift Flux Model ◽  
Drift Flux ◽  
Flux Model

Interfacial Structures and Regime Transition in Co-Current Downward Bubbly Flow

2004 ◽  
Vol 126 (4) ◽  
pp. 528-538 ◽  
Author(s):  
S. Kim ◽  
S. S. Paranjape ◽  
M. Ishii ◽  
J. Kelly
Keyword(s):  
Two Phase Flow ◽  
Bubbly Flow ◽  
Superficial Velocity ◽  
Phase Flow ◽  
Two Phase ◽  
Drift Flux Model ◽  
Drift Flux ◽  
Flow Parameters ◽  
Interfacial Structures ◽  
Flux Model

The vertical co-current downward air-water two-phase flow was studied under adiabatic condition in round tube test sections of 25.4-mm and 50.8-mm ID. In flow regime identification, a new approach was employed to minimize the subjective judgment. It was found that the flow regimes in the co-current downward flow strongly depend on the channel size. In addition, various local two-phase flow parameters were acquired by the multi-sensor miniaturized conductivity probe in bubbly flow. Furthermore, the area-averaged data acquired by the impedance void meter were analyzed using the drift flux model. Three different distributions parameters were developed for different ranges of non-dimensional superficial velocity, defined by the ration of total superficial velocity to the drift velocity.

One-dimensional drift-flux model for two-phase flow in pool rod bundle systems

2012 ◽  
Vol 40 ◽  
pp. 166-177 ◽  
Author(s):  
Shao-Wen Chen ◽  
Yang Liu ◽  
Takashi Hibiki ◽  
Mamoru Ishii ◽  
Yoshitaka Yoshida ◽  
...  
Keyword(s):  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
One Dimensional ◽  
Drift Flux Model ◽  
Drift Flux ◽  
Rod Bundle ◽  
Flux Model

scholarly journals A Hydraulic Model for Multiphase Flow Based on the Drift Flux Model in Managed Pressure Drilling

Energies ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3930 ◽  
Author(s):  
Fang ◽  
Meng ◽  
Wei ◽  
Xu ◽  
Li
Keyword(s):  
Multiphase Flow ◽  
Oil And Gas ◽  
Splitting Method ◽  
Field Application ◽  
Effective Control ◽  
Two Phase ◽  
Drift Flux Model ◽  
Drift Flux ◽  
Managed Pressure Drilling ◽  
Flux Model

Managed pressure drilling (MPD) is a drilling technique used to address the narrow density window under complex geological environments. It has widespread applications in the exploration and exploitation of oil and gas, both onshore and offshore. In this study, to achieve effective control of the downhole pressure to ensure safety, a gas–liquid two-phase flow model based on the drift flux model is developed to describe the characteristics of transient multiphase flow in the wellbore. The advection upwind splitting method (AUSM) numerical scheme is used to assist with calculation and analysis, and the monotonic upwind scheme for conservation laws (MUSCLs) technique with second-order precision is adopted in combination with the Van Leer slope limiter to improve precision. Relevant data sourced from prior literature are used to validate the suggested model, the results of which reveal an excellent statistical consistency. Further, the influences of various parameters in a field application, including backpressure, density, and mass flow, are analyzed. Over the course of later-stage drilling, a combination of wellhead backpressure and displacement is recommended to exercise control.

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