Version 1
: Received: 5 August 2024 / Approved: 5 August 2024 / Online: 6 August 2024 (12:38:08 CEST)
How to cite:
Pedrolli, L.; Fraccarollo, L.; Achiaga, B.; López García, A. Optical Particle Tracking in the Pneumatic Conveying of Metal Powders Through a Thin Capillary Pipe. Preprints2024, 2024080385. https://doi.org/10.20944/preprints202408.0385.v1
Pedrolli, L.; Fraccarollo, L.; Achiaga, B.; López García, A. Optical Particle Tracking in the Pneumatic Conveying of Metal Powders Through a Thin Capillary Pipe. Preprints 2024, 2024080385. https://doi.org/10.20944/preprints202408.0385.v1
Pedrolli, L.; Fraccarollo, L.; Achiaga, B.; López García, A. Optical Particle Tracking in the Pneumatic Conveying of Metal Powders Through a Thin Capillary Pipe. Preprints2024, 2024080385. https://doi.org/10.20944/preprints202408.0385.v1
APA Style
Pedrolli, L., Fraccarollo, L., Achiaga, B., & López García, A. (2024). Optical Particle Tracking in the Pneumatic Conveying of Metal Powders Through a Thin Capillary Pipe. Preprints. https://doi.org/10.20944/preprints202408.0385.v1
Chicago/Turabian Style
Pedrolli, L., Beatriz Achiaga and Alejandro López García. 2024 "Optical Particle Tracking in the Pneumatic Conveying of Metal Powders Through a Thin Capillary Pipe" Preprints. https://doi.org/10.20944/preprints202408.0385.v1
Abstract
Directed Energy Deposition (DED) processes necessitate a consistent material flow to the melt pool, typically achieved through pneumatic conveying of metal powder via thin pipes. This study aims to record and analyze the multiphase fluid-solid flow. An experimental setup utilizing a high-speed camera and specialized optics was constructed, the flow through thin transparent pipes was recorded. The resulting information was analyzed and compared with coupled Computational Fluid Dynamics - Discrete Element Modeling (CFD-DEM) simulations, with special attention to the solids flow fluctuations. The paper details the experimental design, video analysis using Particle Tracking, and a novel method for deriving volumetric concentrations and flowrate from flat images. The findings confirm the accuracy of the CFD-DEM simulations and provide insights into the dynamics of pneumatic conveying, which could be used to enhance the efficiency of DED processes.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
