scholarly journals Numerical simulation of predicting and reducing solid particle erosion of solid-liquid two-phase flow in a choke

2009 ◽  
Vol 6 (1) ◽  
pp. 91-97 ◽  
Author(s):  
Guomei Li ◽  
Yueshe Wang ◽  
Renyang He ◽  
Xuewen Cao ◽  
Changzhi Lin ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Solid Particle ◽  
Two Phase Flow ◽  
Solid Particle Erosion ◽  
Phase Flow ◽  
Particle Erosion ◽  
Two Phase ◽  
Solid Liquid

Experimental and Numerical Study on Solid Particle Erosion in Elbows Mounted in Series

2017 ◽  
Author(s):  
Alireza Asgharpour ◽  
Peyman Zahedi ◽  
Hadi Arabnejad Khanouki ◽  
Siamack A. Shirazi ◽  
Brenton S. McLaury
Keyword(s):  
Solid Particle ◽  
Two Phase Flow ◽  
Numerical Study ◽  
Flow Direction ◽  
Solid Particle Erosion ◽  
Phase Flow ◽  
Particle Erosion ◽  
Two Phase ◽  
Experimental Conditions ◽  
In Series

Solid particle erosion in elbows is of great importance in the pipeline design process. In many situations, elbows are mounted in series with small distances between each other. Due to changes in flow direction and particles concentration after the first elbow, a significant change in erosion magnitude and pattern in the downstream elbows (second elbow) might be expected. The aim of this study is to investigate the solid particle erosion behavior in the second elbow. In the experimental study using a state-of-art ultrasonic technique, erosion magnitudes in two standard 4-inch elbows separated by a distance of 10 pipe diameter have been measured. Experiments have been conducted in single and two-phase flow regimes for different particle sizes and gas and liquid velocities. In most of the cases, the maximum erosion in the second elbow was less than the first elbow, and the erosion pattern in the second elbow was slightly different than the first elbow. Comparison of single and two-phase flow results for both elbows revealed that in two-phase flow regime a major reduction in erosion magnitude happens as a results of the presence of liquid in the pipe. Additionally, for further considerations, the experimental conditions have been simulated numerically using ANSYS FLUENT software. Simulations have been performed for different mesh grids and turbulence models to examine how they influence the erosion in the second elbow as both can affect the particles trajectories. The accuracy of the numerical results are evaluated with available experimental data. For most of the cases, the erosion predictions are in a good agreement with experimental results. For both elbows by increasing the gas velocity and particle size, the maximum erosion increased.

scholarly journals Solid-liquid Two-phase Flow Numerical Simulation around Guide Vanes of Mixed-flow Water Turbine

2012 ◽  
Vol 31 ◽  
pp. 87-91 ◽  
Author(s):  
Qifei Li ◽  
Rennian Li ◽  
Hui Quan ◽  
Wei Han
Keyword(s):  
Numerical Simulation ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Mixed Flow ◽  
Two Phase ◽  
Guide Vanes ◽  
Water Turbine ◽  
Solid Liquid

scholarly journals Numerical simulation on solid-liquid two-phase flow in cross fractures

2018 ◽  
Vol 181 ◽  
pp. 1-18 ◽  
Author(s):  
Peng Li ◽  
Xuhui Zhang ◽  
Xiaobing Lu
Keyword(s):  
Numerical Simulation ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Solid Liquid

scholarly journals Numerical simulation of erosion for solid-liquid two-phase flow in u-tube

2019 ◽  
Vol 479 ◽  
pp. 012013
Author(s):  
Y Y Zheng ◽  
Y J Ye ◽  
C Y Xie ◽  
K Zheng ◽  
Y P Yu
Keyword(s):  
Numerical Simulation ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Solid Liquid

scholarly journals Study on the Effects of the Wear-Rings Clearance on the Solid-Liquid Two-Phase Flow Characteristics of Centrifugal Pumps

Symmetry ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2003
Author(s):  
Chaoshou Yan ◽  
Jianfei Liu ◽  
Shuihua Zheng ◽  
Bin Huang ◽  
Jiacheng Dai
Keyword(s):  
Numerical Simulation ◽  
Centrifugal Pump ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Centrifugal Pumps ◽  
Suction Surface ◽  
Two Phase ◽  
Wear Area ◽  
Fluid Medium ◽  
Solid Liquid

In order to study the wear law of the centrifugal pump flowing surface under different wear-rings clearance, the McLaury wear model was used to conduct the full-passage numerical simulation of solid-liquid two-phase flow in a single-stage single-suction centrifugal pump. The reliability of the numerical calculation method is verified by comparing the experimental data and numerical simulation results. The clearance is 0.1, 0.15, 0.2, 0.3 and 0.5 mm, respectively. The results show that the wear of the centrifugal pump blades is mainly concentrated in the end part and the inlet part of the blade, and the wear of the pressure surface at the end of the suction surface and the front of the blade is more serious. As the clearance increases, the maximum wear value in the impeller increases first and then decreases, reaching a maximum at 0.15 mm. With the increase of the clearance, the wear degree and the wear rate of the volute wall surface first increase and then decrease, and reach the maximum at 0.2 mm. With the increase of the clearance and the concentration of the fluid medium, the wear at the clearance of the centrifugal pump is more serious, and the severe wear area exhibits a point-like circumferential distribution.

scholarly journals Numerical simulation of solid - liquid two - phase flow deposition on the surface of tube bundle

2018 ◽  
Vol 189 ◽  
pp. 052025
Author(s):  
Zheng yangyan ◽  
ye youjun ◽  
xie chuan yang ◽  
zheng kai ◽  
yu yanping
Keyword(s):  
Numerical Simulation ◽  
Two Phase Flow ◽  
Tube Bundle ◽  
Phase Flow ◽  
Two Phase ◽  
Solid Liquid

NUMERICAL SIMULATION OF LAMINAR SOLID-LIQUID TWO-PHASE FLOW IN STIRRED TANKS

2006 ◽  
Vol 194 (3) ◽  
pp. 291-308 ◽  
Author(s):  
Long Fan ◽  
Zai-Sha Mao ◽  
Chao Yang ◽  
Yundong Wang
Keyword(s):  
Numerical Simulation ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Stirred Tanks ◽  
Two Phase ◽  
Solid Liquid

Numeration Simulation of Solid-Liquid Two-Phase Flow in Centrifugal Sewerage Pump

2010 ◽  
Vol 44-47 ◽  
pp. 345-348 ◽  
Author(s):  
Jian Hua Liu ◽  
Ming Yi Zhu
Keyword(s):  
Particle Size ◽  
Solid Particle ◽  
Working Condition ◽  
Two Phase Flow ◽  
Volume Fraction ◽  
Phase Flow ◽  
Operation Condition ◽  
Two Phase ◽  
And Performance ◽  
Solid Liquid

By Means of Fluent 6.3，the paper simulated the solid-liquid two-phase flow to a centrifugal sewerage pump，using Eulerian Mixture Model under different working condition and different particle size. The simulation draws some conclusion on distributive rules of solid particle inside impeller passage. The results for this simulation were as following: Distributive rules of solid particle inside impeller passage mainly relate to particle size. Meanwhile，the volume fraction of particles and operation condition have influence on distributive rules of solid particle. The simulated results can explain commendably that attrition took place inside pump passage when pump transported solid-liquid two-phase flow. Meanwhile，the simulated results have reference price to improve the design for pump and performance of pump.

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