Modeling the Transport and Interaction of Paperboard ”Confetti” in Pipes
(2024) MVKM01 20232Department of Energy Sciences
- Abstract
- During the production of Tetra Pak’s packaging material, holes are cut for straws and caps, generating paperboard scraps known as confetti. These scraps must be removed from the machinery to prevent build-up and potential blockages. To design efficient extraction systems, experiments and simulations are employed to understand the phenomena of confetti transport. Confetti are introduced into a simplified extraction geometry and their movement is captured using high-speed photography. The obtained data, extracted by computer vision scripting, contributes to the evaluation of joint fluid-structure interaction models simulated using the Star-CCM+ computational fluid dynamics software.
The analysis reveals that confetti transport exhibits... (More) - During the production of Tetra Pak’s packaging material, holes are cut for straws and caps, generating paperboard scraps known as confetti. These scraps must be removed from the machinery to prevent build-up and potential blockages. To design efficient extraction systems, experiments and simulations are employed to understand the phenomena of confetti transport. Confetti are introduced into a simplified extraction geometry and their movement is captured using high-speed photography. The obtained data, extracted by computer vision scripting, contributes to the evaluation of joint fluid-structure interaction models simulated using the Star-CCM+ computational fluid dynamics software.
The analysis reveals that confetti transport exhibits chaotic characteristics, as seemingly identical experiments and simulations result in unique trajectories through the extraction geometry. Although the model cannot predict individual confetti trajectories, these trajectories are similar to those observed in the experiments. When evaluating the average speeds of confetti within regions of interest, the range of averages consistently increases downstream, accompanied by an increasing overestimation of velocities. This overestimation is likely due to unaccounted losses from an imperfect contact model, which also leads to identical simulations producing different outcomes. Despite its limitations, the model offers valuable insights into confetti transport and serves as a foundation for further development by Tetra Pak, supplemented by the knowledge gained from its construction. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9150471
- author
- Willemo, Ludvig LU
- supervisor
- organization
- course
- MVKM01 20232
- year
- 2024
- type
- H2 - Master's Degree (Two Years)
- subject
- keywords
- Fluid-structure interaction (FSI), Computational fluid dynamics (CFD), Finite element analysis (FEA), Image analysis, Paperboard, Pipe debris
- report number
- LUTMDN/TMHP-24/5562-SE
- ISSN
- 0282-1990
- language
- English
- id
- 9150471
- date added to LUP
- 2024-04-10 15:54:57
- date last changed
- 2024-04-10 15:54:57
@misc{9150471, abstract = {{During the production of Tetra Pak’s packaging material, holes are cut for straws and caps, generating paperboard scraps known as confetti. These scraps must be removed from the machinery to prevent build-up and potential blockages. To design efficient extraction systems, experiments and simulations are employed to understand the phenomena of confetti transport. Confetti are introduced into a simplified extraction geometry and their movement is captured using high-speed photography. The obtained data, extracted by computer vision scripting, contributes to the evaluation of joint fluid-structure interaction models simulated using the Star-CCM+ computational fluid dynamics software. The analysis reveals that confetti transport exhibits chaotic characteristics, as seemingly identical experiments and simulations result in unique trajectories through the extraction geometry. Although the model cannot predict individual confetti trajectories, these trajectories are similar to those observed in the experiments. When evaluating the average speeds of confetti within regions of interest, the range of averages consistently increases downstream, accompanied by an increasing overestimation of velocities. This overestimation is likely due to unaccounted losses from an imperfect contact model, which also leads to identical simulations producing different outcomes. Despite its limitations, the model offers valuable insights into confetti transport and serves as a foundation for further development by Tetra Pak, supplemented by the knowledge gained from its construction.}}, author = {{Willemo, Ludvig}}, issn = {{0282-1990}}, language = {{eng}}, note = {{Student Paper}}, title = {{Modeling the Transport and Interaction of Paperboard ”Confetti” in Pipes}}, year = {{2024}}, }