Research on the Influence of the Deflector Angle on the Droplet Trajectory Based on the CFD Discrete Phase Model

Hao, Guangfa; Zhang, Chengliang; Sun, Kang; Li, Lei; Jun, Zhou

doi:10.1088/1742-6596/1600/1/012034

Cited by 2 publications

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The benefit of the CFD-based approach is that it gives comprehensive information about the local variations of flow parameters where the measurements are either difficult or impractical to conduct. In the case of a low particle concentration, choosing the CFD-DPM method can improve the calculation efficiency while ensuring calculation accuracy [10,11]. Rui Li et al [12], showed the design optimization of a hemispherical protrusion for mitigating elbow erosion via CFD-DPM.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Erosion Minimization for a Slurry Pump Using Discrete Phase Model Simulations

Kim

Jeon

2022

Applied Sciences

View full text Add to dashboard Cite

A slurry pump is a device used to transport slurry, which is a mixture of solids and liquids. The slurry pump is subjected to physical erosion, generally resulting from erosion by friction between the solid and liquid particles. This study aimed to analyze the effects of process parameters on the erosion wear of a throat bush, which is the main component of a slurry pump. The erosion rate density (E) was analyzed based on the process parameters, that is, the slurry particle diameter, rotation speed of the impeller, and gap between the impeller and the throat bush. The discrete phase model (DPM) of the slurry pump was simulated using the process parameters. These parameters were optimized to minimize the erosion rate density. The optimization method using design of experiments (DOE) to derive a specific location with the greatest influence of the design variables through the one-way layout method and optimize the response value at that location is a method that efficiently analyzes a large number of cases. The optimization results confirmed that the erosion rate density was reduced in the optimization model compared with the earlier model.

show abstract

Section: Introductionmentioning

confidence: 99%

Analysis of Erosion Minimization for a Slurry Pump Using Discrete Phase Model Simulations

Kim

Jeon

2022

Applied Sciences

View full text Add to dashboard Cite

show abstract

Experimental investigation on large clearance shaft seal for gas-liquid mixtures

Xu,

Cao,

Zhao

et al. 2024

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

In order to find a solution for the oil leakage problem of a large clearance shaft seal on a marine diesel engine, a series of improvement measures were proposed based on the mechanisms of centrifugal separation, reverse pumping, oil groove and staggered labyrinth. A shaft seal test system that can simulate the gas-liquid environment was built, and verification tests were conducted. Test results showed that the oil leakage didn’t decrease after adding radial or inclined ribs on the oil slinger but increased significantly instead. Adding an oil groove on the oil baffle also didn’t reduce any oil leakage. Fortunately, the addition of the staggered labyrinth effectively reduced the oil leakage. By combining with CFD simulation, the test results were explained, and the sealing functions of different structural features were studied. For structural design work of the non-contact shaft seal, the following design suggestions were proposed. First, the centrifugal effect on the liquid medium can be enhanced by adding ribs on the oil slinger, but the obstruction of oil return should be avoided at the same time. Second, the rotational speed should be fully considered when using the reverse pumping effect. Third, the oil guide groove should be adapted to the airflow and rotation state at its location. Finally, the staggered labyrinth has a stronger throttling effect compared with the straight-through labyrinth, which can reduce the outward transportation of oil by airflow.

show abstract

Research on the Influence of the Deflector Angle on the Droplet Trajectory Based on the CFD Discrete Phase Model

Cited by 2 publications

References 2 publications

Analysis of Erosion Minimization for a Slurry Pump Using Discrete Phase Model Simulations

Analysis of Erosion Minimization for a Slurry Pump Using Discrete Phase Model Simulations

Experimental investigation on large clearance shaft seal for gas-liquid mixtures

Contact Info

Product

Resources

About