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

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.

2009 ◽  
Vol 416 ◽  
pp. 342-347 ◽  
Author(s):  
Sheng Qiang Yang ◽  
Wen Hui Li ◽  
Shi Chun Yang

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.


2010 ◽  
Vol 135 ◽  
pp. 149-153 ◽  
Author(s):  
Wen Hui Li ◽  
Sheng Qiang Yang ◽  
Xiu Hong Li

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.


2010 ◽  
Vol 135 ◽  
pp. 319-324 ◽  
Author(s):  
Sheng Qiang Yang ◽  
Wen Hui Li ◽  
Shi Chun Yang

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.


2011 ◽  
Vol 305 ◽  
pp. 438-441 ◽  
Author(s):  
Wen Hui Li ◽  
Sheng Qiang Yang ◽  
Xiao Chun Yang

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.


Author(s):  
Henrique Stel ◽  
Edgar Ofuchi ◽  
Dalton Bertoldi ◽  
Moisés Marcelino Neto ◽  
Rigoberto Morales ◽  
...  

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5697
Author(s):  
Chang Sun ◽  
Shihong Yue ◽  
Qi Li ◽  
Huaxiang Wang

Component fraction (CF) is one of the most important parameters in multiple-phase flow. Due to the complexity of the solid–liquid two-phase flow, the CF estimation remains unsolved both in scientific research and industrial application for a long time. Electrical resistance tomography (ERT) is an advanced type of conductivity detection technique due to its low-cost, fast-response, non-invasive, and non-radiation characteristics. However, when the existing ERT method is used to measure the CF value in solid–liquid two-phase flow in dredging engineering, there are at least three problems: (1) the dependence of reference distribution whose CF value is zero; (2) the size of the detected objects may be too small to be found by ERT; and (3) there is no efficient way to estimate the effect of artifacts in ERT. In this paper, we proposed a method based on the clustering technique, where a fast-fuzzy clustering algorithm is used to partition the ERT image to three clusters that respond to liquid, solid phases, and their mixtures and artifacts, respectively. The clustering algorithm does not need any reference distribution in the CF estimation. In the case of small solid objects or artifacts, the CF value remains effectively computed by prior information. To validate the new method, a group of typical CF estimations in dredging engineering were implemented. Results show that the new method can effectively overcome the limitations of the existing method, and can provide a practical and more accurate way for CF estimation.


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