Experimental Study of Two-Phase Compulsive Circulation Flows Finishing

2010 ◽  
Vol 135 ◽  
pp. 149-153 ◽  
Author(s):  
Wen Hui Li ◽  
Sheng Qiang Yang ◽  
Xiu Hong Li
Keyword(s):  
Numerical Simulation ◽  
Experimental Study ◽  
Liquid Flow ◽  
New Method ◽  
Surface Finishing ◽  
Two Phase ◽  
Nozzle Position ◽  
Main Factors

For the precise hole surface, the burr severely affects products’ performance. Considering the specific conditions of the precise hole surface finishing, a new method of two-phase compulsive circulation flows finishing is brought up. Nozzle number, nozzle position, liquid flow, etc. are main factors, which would directly influence finishing effect and efficiency. Affecting rules of main factors are studied by experiments and numerical simulation, which provide basis for thorough research.

Technique Project and Experimental Study of Gas-Particle Two-Phase Compulsive Circulation Flows Finishing

2011 ◽  
Vol 305 ◽  
pp. 438-441 ◽  
Author(s):  
Wen Hui Li ◽  
Sheng Qiang Yang ◽  
Xiao Chun Yang
Keyword(s):  
Numerical Simulation ◽  
Experimental Study ◽  
Process Parameters ◽  
New Method ◽  
Surface Finishing ◽  
Experimental Equipment ◽  
Experimental Basis ◽  
Two Phase

For the precise hole surface, the burr severely affects products’ performance. Considering the specific conditions of precise hole surface finishing, a new method of gas-particle two-phase compulsive circulation flows finishing is brought up. By numerical simulation of finishing project, its feasibility is defined. Experimental equipment is designed, and its finishing effect is done with experimental study, which provide theoretic and experimental basis for process parameters and thorough research.

Simulation and Design of Experimental Equipment for Two-Phase Compulsive Circulation Flows Finishing

2010 ◽  
Vol 135 ◽  
pp. 319-324 ◽  
Author(s):  
Sheng Qiang Yang ◽  
Wen Hui Li ◽  
Shi Chun Yang
Keyword(s):  
Numerical Simulation ◽  
Process Parameters ◽  
New Method ◽  
Surface Finishing ◽  
Experimental Equipment ◽  
Experimental Basis ◽  
Two Phase ◽  
Basic Premise

For the precise hole surface, the burr severely affects products’ performance. Considering the specific conditions of the precise hole surface finishing, a new method of two-phase compulsive circulation flows finishing is brought up. On the basic premise of defining k-ε model, numerical simulation of finishing project is done and its feasibility is defined. Experimental equipment is designed, especially, component of circulation flows formation is analyzed in detail, which provide experimental basis for process parameters and thorough research.

Simulation of Equipment Parameters on Gas-Particle Two-Phase Swirling Flows Finishing

2009 ◽  
Vol 416 ◽  
pp. 342-347 ◽  
Author(s):  
Sheng Qiang Yang ◽  
Wen Hui Li ◽  
Shi Chun Yang
Keyword(s):  
Numerical Simulation ◽  
Equipment Design ◽  
Swirling Flows ◽  
Nozzle Diameter ◽  
New Method ◽  
Surface Finishing ◽  
Theoretic Analysis ◽  
Two Phase

For the precise hole surface, the burr severely affects products’ performance. Considering the specific conditions of the precise hole surface finishing, a new method of gas-particle two-phase swirling flows finishing is brought up. By theoretic analysis, equipment parameters, nozzle angle, nozzle diameter, nozzle quantity, nozzle displacement, etc., affect finishing quality and efficiency. Numerical simulation of equipment parameters is done through CFD software (Fluent, Gambit), which provides credible basis for thorough research and equipment design.

Numerical Simulation of Gas-Liquid Two-Phase Flows on Wetted Walls

2010 ◽  
Author(s):  
Yoshiyuki Iso ◽  
Xi Chen
Keyword(s):  
Numerical Simulation ◽  
Flow Rate ◽  
Liquid Flow ◽  
Film Flow ◽  
Liquid Flow Rate ◽  
Flow Transition ◽  
Wall Surface ◽  
Two Phase ◽  
Wall Flows ◽  
Rivulet Flow

Gas-liquid two-phase flows on the wall like liquid film flows, which are the so-called wetted wall flows, are observed in many industrial processes such as absorption, desorption, distillation and others. For the optimum design of packed columns widely used in those kind of processes, the accurate predictions of the details on the wetted wall flow behavior in packing elements are important, especially in order to enhance the mass transfer between the gas and liquid and to prevent flooding and channeling of the liquid flow. The present study focused on the effects of the change of liquid flow rate and the wall surface texture treatments on the characteristics of wetted wall flows which have the drastic flow transition between the film flow and rivulet flow. In this paper, the three-dimensional gas-liquid two-phase flow simulation by using the volume of fluid (VOF) model is applied into wetted wall flows. Firstly, as one of new interesting findings in this paper, present results showed that the hysteresis of the flow transition between the film flow and rivulet flow arose against the increasing or decreasing stages of the liquid flow rate. It was supposed that this transition phenomenon depends on the history of flow pattern as the change of curvature of interphase surface which leads to the surface tension. Additionally, the applicability and accuracy of the present numerical simulation were validated by using the existing experimental and theoretical studies with smooth wall surface. Secondary, referring to the texture geometry used in an industrial packing element, the present simulations showed that surface texture treatments added on the wall can improve the prevention of liquid channeling and can increase the wetted area.

Numerical simulation and experimental study of liquid–liquid flow dispersion in conical spiral pipes

2018 ◽  
Vol 138 ◽  
pp. 374-386
Author(s):  
Ting Zhang ◽  
Kai Guo ◽  
Chunjiang Liu ◽  
Aiguo Feng ◽  
Hongwei Cai ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Experimental Study ◽  
Liquid Flow

Numerical Simulation of Two-Phase Liquid–liquid Flow in a New Static Mixer Structure

2011 ◽  
Vol 368-373 ◽  
pp. 1604-1607
Author(s):  
Hong Yan Zhang ◽  
Hai Hong Dong
Keyword(s):  
Numerical Simulation ◽  
Liquid Flow ◽  
Transport Model ◽  
Simulation Method ◽  
Static Mixer ◽  
Mixing Process ◽  
Two Phase ◽  
Species Transport ◽  
Mixing Effect ◽  
Phase Liquid

In this article, Spiral belt static mixer with changing diameter was taken as the object. The numerical simulation method was used to investigate the mixing process of two-phase liquid–liquid flow in water treatment by a commercial CFD code,namely Fluent.The k-ε model and species transport model were established to research this project. Then the mixing effect was compared with that of HEV static mixer. The result showed that spiral belt static mixer with changing diameter promote the mixing effect greatly. The mixing effect relative to that of HEV static mixer increased 10 times and the the pressure loss only increased 3 times.

Finishing Effect and Uniformity on Gas-Particle Two-Phase Swirling Flows Finishing for Hole Surface

2010 ◽  
Vol 97-101 ◽  
pp. 4124-4127 ◽  
Author(s):  
Sheng Qiang Yang ◽  
Wen Hui Li ◽  
Shi Chun Yang
Keyword(s):  
Service Life ◽  
Experimental Analysis ◽  
Industrial Application ◽  
Equipment Design ◽  
Swirling Flows ◽  
New Method ◽  
Surface Finishing ◽  
Two Phase ◽  
Research Equipment

For precise hole surfaces, the burr severely affects products’ performance and service life. Considering specific conditions of hole surface finishing, a new method of gas-particle two-phase swirling flows finishing is brought up. By experimental analysis, finishing effect and axial uniformity are defined, which provides credible basis for thorough research, equipment design and industrial application.

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