We are pleased to announce that Ingrid Kristine Jacobsen, doctoral researcher at the University of Bergen (Norway), will give the SFB 1313 "Pretty Porous Science Lecture" #71. Her talk will be on "A Finite Volume Method for Elastic Wave Propagation in Fractured Media with Fracture Contact Mechanics".
Date: 16 December 2025
Time: 4 pm
Speaker: Ingrid Kristine Jacobsen, University of Bergen (Norway)
Title: "A Finite Volume Method for Elastic Wave Propagation in Fractured Media with Fracture Contact Mechanics"
Venue: Multi Media Lab (MML), U1.003, Pfaffenwaldring 61, 70569 Stuttgart, Campus Vaihingen. If you are interested in participating in the lecture online, please contact samaneh.vahiddastjerdi@mechbau.uni-stuttgart.de
Abstract
Numerical modeling of elastic wave propagation is important for subsurface applications such as geothermal energy production, storage and wastewater disposal. We consider the problem of elastic wave propagation in fractured media, where the medium is modeled using a mixed-dimensional discrete fracture-matrix approach. Fracture deformation is governed by a Coulomb friction law for fault slip, and a non-penetration condition which prevents the fracture surfaces from intersecting. We discretize the elastic wave equation in space using the cell-centered finite volume Multi-Point Stress Approximation with weak symmetry, which is a geometrically flexible and locally conservative method well-suited for handling anisotropies, heterogeneities and fractures. For time discretization, we use the Newmark method, and to minimize artificial boundary reflections, we apply first order absorbing boundary conditions.
We present results from numerical simulations in both two and three dimensions for fractured, heterogeneous and anisotropic media. These results highlight the method’s capability to model wave propagation and fracture deformation within complex geological structures such as anisotropic and heterogeneous rock.