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26 September 2024 Numerical simulation of extrusion swell effect of solid propellant slurry
Yue Wu, Meng Wang
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Proceedings Volume 13279, Fifth International Conference on Green Energy, Environment, and Sustainable Development (GEESD 2024) ; 132791R (2024) https://doi.org/10.1117/12.3044442
Event: Fifth International Conference on Green Energy, Environment, and Sustainable Development, 2024, Mianyang, China
Abstract
Aiming at the viscoelastic flow of solid propellant slurry, the extrusion swelling effect under the FENE-P constitutive model was studied based on the CFD Polyflow simulation software, which provided a new idea for solving the free-surface flow problem of viscoelastic fluid. The results show that the closer the slurry fluid is to the wall, the smaller the velocity; In the process of simulated extrusion, the pressure gradually decreases along the flow direction of the slurry, and suddenly disappears to zero at the outlet of the die due to the constraint of the model wall on the slurry; Extrusion swelling ratio increases with the increase of relaxation time.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Yue Wu and Meng Wang "Numerical simulation of extrusion swell effect of solid propellant slurry", Proc. SPIE 13279, Fifth International Conference on Green Energy, Environment, and Sustainable Development (GEESD 2024) , 132791R (26 September 2024); https://doi.org/10.1117/12.3044442
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KEYWORDS
Extrusion
Solids
Clouds
Viscoelasticity
Elasticity
Deformation
Numerical simulations
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