Quantifying the Upscaling Footprint from Pore to Darcy Scale via Pore Network Modelling: An Analysis of Microscopic Structure and Its Macroscopic Implications

Rusmir Helja

Research output: ThesisMaster's Thesis

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Abstract

This thesis addresses the challenge of upscaling in porous media, a critical issue where the accurate prediction of continuum behavior depends on pore-scale characteristics. By employing statistical modelling, the study thoroughly investigates the upscaling footprint from pore to Darcy scale for homogeneous pore network models. Through detailed property scaling, comprehensive REV relationships that quantify the impact of microscale size and connectivity heterogeneities on continuum behavior are developed. Model-agnostic analysis concurrently reveals complex non-linear dependencies between pore-scale features and emergent flow behavior. These insights highlight the intricate nature of upscaling and underscore the necessity for precise microscale characterization to inform effective macroscopic predictions.
Translated title of the contributionQuantifizierung des Upscaling-Footprints von der Poren- zur Darcy-Skala durch Modellierung von Porennetzwerken: Eine Analyse der mikroskopischen Struktur und ihrer makroskopischen Implikationen
Original languageEnglish
QualificationDipl.-Ing.
Awarding Institution
  • Montanuniversität
Supervisors/Advisors
  • Azizmohammadi, Siroos, Supervisor (internal)
  • Ott, Holger, Co-Supervisor (internal)
Award date20 Dec 2024
DOIs
Publication statusPublished - 2024

Bibliographical note

no embargo

Keywords

  • Upscaling
  • Porous media
  • Darcy scale
  • Pore network modeling
  • REV
  • Heterogeneity
  • Statistical modeling
  • Coefficient of variation

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