Blar i Bergen Open Research Archive på forfatter "Gebhardt, Cristian Guillermo"
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A finite element method for simulating soft active non-shearable rods immersed in generalized Newtonian fluids
Ausas, Roberto Federico; Gebhardt, Cristian Guillermo; Buscaglia, Gustavo Carlos (Journal article; Peer reviewed, 2022)We propose a finite element method for simulating one-dimensional solid models with finite thickness and finite length that move and experience large deformations while immersed in generalized Newtonian fluids. The method ... -
Gone with the wind? Wind farm-induced wakes and regulatory gaps
Finserås, Eirik; Herrera Anchustegui, Ignacio; Cheynet, Etienne; Gebhardt, Cristian Guillermo; Reuder, Joachim (Journal article; Peer reviewed, 2024)Wind farm-induced wakes can propagate dozens of kilometres, decreasing the power production and the fatigue lifetime of wind turbines between neighbouring farms. This phenomenon termed hereinafter “wind theft”, may lead ... -
Long-time principal geodesic analysis in director-based dynamics of hybrid mechanical systems
Gebhardt, Cristian Guillermo; Schubert, Jenny; Steinbach, Marc C. (Journal article; Peer reviewed, 2023)In this article, we investigate an extended version of principal geodesic analysis for the unit sphere S2 and the special orthogonal group SO(3). In contrast to prior work, we address the construction of long-time smooth ... -
Modeling and stability analysis of a sliding bead from a problem-based learning perspective
Roccia, Bruno Antonio; Bossio, Guillermo R; Mazzone, Fernando D; Gebhardt, Cristian Guillermo (Journal article; Peer reviewed, 2023)In this work, we adopt a problem-based learning approach to develop an integrative bachelor project that relies on competences acquired from basic courses in mathematics, mechanics and computation. In this sense, the ... -
On a nonlinear rod exhibiting only axial and bending deformations: mathematical modeling and numerical implementation
Gebhardt, Cristian Guillermo; Romero, Ignacio (Journal article; Peer reviewed, 2021)In this work, we present the mathematical formulation and the numerical implementation of a new model for initially straight, transversely isotropic rods. By adopting a configuration space that intrinsically avoids shear ...