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April 11, 2026Rock Mechanics and Rock EngineeringOpen Access

A Connectivity-Based Forchheimer Model for Nonlinear Flow in Sheared Rough-Wall Fractures

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Authors

MGMin GaoXLXige LiuZXZizhuo Xiang

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Overview

Develops a hydromechanical model to improve fluid flow predictions in sheared fractures, indicating enhanced fracture permeability.

Key Points

  • The research aims to develop a Forchheimer model that accurately captures fluid flow through complex rock fractures by considering void-space connectivity.
  • Developed a Forchheimer-based hydromechanical model for nonlinear flow in fractures.
  • Integrated 8 conceptual hydraulic aperture models into the framework.
  • Used a novel path searching algorithm to identify preferential flow pathways.
  • Conducted a systematic analysis of fracture permeability with a dataset from 384 shear-flow tests.
  • Achieved a mean absolute percentage error of 16.7% in predictions.
  • Demonstrated a regression slope of 0.93 between measured and simulated results.
  • Showed strong agreement with experimental data, enhancing fracture permeability predictions.

Cite This Study

Gao et al. (2026) studied this question.

synapsesocial.com/papers/69d9e5ec78050d08c1b762afhttps://doi.org/10.1007/s00603-026-05465-4
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