A study of pneumatic conveying with high-density AM-using metal powder in a pipe bend

Sheng, Li Tsung; Xiao, Yi Lun; Hsiau, Shu San; Chen, Chih Peng; Lin, Ping; Jen, Kuo-Kuang

doi:10.1016/j.ijmecsci.2020.105763

Cited by 14 publications

(2 citation statements)

References 43 publications

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“…Erosion, which occurs as a result of the abrasive materials acting on various components of the system, represents a serious issue and significant challenge, in pneumatic conveying systems. The occurrence of erosion in pneumatic conveying system elements is heavily influenced by the characteristics of transported materials and solid surfaces, including factors such as particle impact velocity, particle impact angle, particle properties and the hardness of the target material [1][2][3]. The fundamental cause of erosion is the interaction between particles and wall, resulting in the removal of wall materials.…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have explored numerical models to predict particleinduced erosion [4,6,7]. Typically, researchers employ the standard Reynolds-averaged Navier-Stokes (RANS) equations to predict fluid flow through elbows using the Eulerian approach, followed by Lagrangian approach for tracking of particles [1,2,6]. Meng and Ludema [8] compiled 28 erosion prediction equations that were specifically developed for solid particle-wall erosion and outlined the 33 parameters employed in these models.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Simulation of Erosion on Aluminium Plate with a Cylindrical Hole

Hadžiahmetović,

Džaferović,

Midžić Kurtagić

et al. 2024

Adv. Sci. Technol. Res. J.

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The purpose of the present study is to simulate erosion on the aluminium plate with a cylindrical hole caused by solid particles after passing through 90° elbow, using the Computational Fluid Dynamics (CFD), the Discrete Phase Model (DPM), and erosion equations. Discrete trajectories of solid particles are calculated using the Lagrangian approach, while the simulation of the fluid was obtained by solving the fluid motion equation using the Eulerian approach. Supplementary sub-models are incorporated into the software to enhance the accuracy of particle trajectory calculations within the simulated geometry. These sub-models include collisions of solid particles with walls (stochastic model) and erosion model. The numerical simulation results obtained in this paper were compared with the existing experimental results from the group of authors, demonstrating a good match. The paper provides the main characteristics of the mathematical model, along with the interpretation of results and a discussion, with the key findings highlighted in the conclusion. The findings indicate that erosion process is significantly influenced by both the particle impact velocity and impact angle, which are key parameters in many erosion equations. Furthermore, it is observed that the velocity of the particles is consistently lower than the mean velocity of the air. Additionally, the angle at which the particles impact the aluminium plate is not always exactly 90° due to multiple collisions with the wall, signifying that the particles do not move exclusively vertically.

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Section: Introductionmentioning

confidence: 99%