Melt Instability Identification Using Unsupervised Machine Learning Algorithms

Autor: Alex Gansen, Julian Hennicker, Clemens Sill, Jean Dheur, Jack S. Hale, Jörg Baller

Publikováno v: Macromolecular Materials and Engineering, Vol 308, Iss 6, Pp n/a-n/a (2023)

Abstract In industrial extrusion processes, increasing shear rates can lead to higher production rates. However, at high shear rates, extruded polymers and polymer compounds often exhibit melt instabilities ranging from stick‐slip to sharkskin to g

Externí odkaz: https://doaj.org/article/3bdd743bdb82436db4c137e76bf4d1a6

Nodal Discretization of Two-Phase Discrete Fracture Matrix models

Autor: Roland Masson, Julian Hennicker, Konstantin Brenner

Publikováno v: Polyhedral Methods in Geosciences
Polyhedral Methods in Geosciences, 2021, ⟨10.1007/978-3-030-69363-3_3⟩
Polyhedral Methods in Geosciences ISBN: 9783030693626

This chapter reviews the nodal Vertex Approximate Gradient (VAG) discretization of two-phase Darcy flows in fractured porous media for which the fracture network is represented as a manifold of co-dimension one with respect to the surrounding matrix

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78a1df65ff9d6e304b8b744737442eac
https://hal.archives-ouvertes.fr/hal-02475151

Verification benchmarks for single-phase flow in three-dimensional fractured porous media

Autor: I-Hsien Lee, Ivar Stefansson, Samuel Burbulla, Bernd Flemisch, Kirill Nikitin, Wietse M. Boon, Maria Giuseppina Chiara Nestola, Eirik Keilegavlen, Omar Durán, Dennis Gläser, Philipp Schädle, Konstantin Lipnikov, Patrick Zulian, Klaus Mosthaf, Roland Masson, Alexandru Tatomir, Anna Scotti, Daniil Svyatskiy, Ruslan M. Yanbarisov, Marco Favino, Inga Berre, Julian Hennicker, Konstantin Brenner, Philippe R.B. Devloo, Chuen Fa Ni, Alessio Fumagalli

Publikováno v: Advances in Water Resources
Advances in Water Resources, Elsevier, 2020, ⟨10.1016/j.advwatres.2020.103759⟩
Advances in Water Resources, 2020, ⟨10.1016/j.advwatres.2020.103759⟩
Berre, I, Boon, W M, Flemisch, B, Fumagalli, A, Gläser, D, Keilegavlen, E, Scotti, A, Stefansson, I, Tatomir, A, Brenner, K, Burbulla, S, Devloo, P, Duran, O, Favino, M, Hennicker, J, Lee, I-H, Lipnikov, K, Masson, R, Mosthaf, K, Nestola, M G C, Ni, C-F, Nikitin, K, Schädle, P, Svyatskiy, D, Yanbarisov, R & Zulian, P 2021, ' Verification benchmarks for single-phase flow in three-dimensional fractured porous media ', Advances in Water Resources, vol. 147, 103759 . https://doi.org/10.1016/j.advwatres.2020.103759

International audience; Flow in fractured porous media occurs in the earth's subsurface, in biological tissues, and in man-made materials. Fractures have a dominating influence on flow processes, and the last decade has seen an extensive development

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55b86157d07afbfe79af67ba4ff9f5ad

Two-phase Discrete Fracture Matrix models with linear and nonlinear transmission conditions

Autor: Roland Masson, Joubine Aghili, Laurent Trenty, Konstantin Brenner, Julian Hennicker

Publikováno v: GEM-International Journal on Geomathematics
GEM-International Journal on Geomathematics, 2019, ⟨10.1007/s13137-019-0118-6⟩
GEM-International Journal on Geomathematics, Springer, 2019, ⟨10.1007/s13137-019-0118-6⟩

International audience; This work deals with two-phase Discrete Fracture Matrix models coupling the two-phase Darcy flow in the matrix domain to the two-phase Darcy flow in the network of fractures represented as co-dimension one surfaces. Two classe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e587abaa20c32d7c5dadbda2d9a7267
https://doi.org/10.1007/s13137-019-0118-6

Hybrid-dimensional modelling of two-phase flow through fractured porous media with enhanced matrix fracture transmission conditions

Autor: Julian Hennicker, Roland Masson, Pierre Samier, Konstantin Brenner

Publikováno v: Journal of Computational Physics
Journal of Computational Physics, Elsevier, 2018, ⟨10.1016/j.jcp.2017.12.003⟩
Journal of Computational Physics, 2018, ⟨10.1016/j.jcp.2017.12.003⟩

International audience; In this work, we extend, to two-phase flow, the single-phase Darcy flow model proposed in [26], [12] in which the (d − 1)-dimensional flow in the fractures is coupled with the d-dimensional flow in the matrix. Three types of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed3c835131fbd74b762abf613c8ca721
https://hal.archives-ouvertes.fr/hal-01518930v2/document