Zobrazeno 1 - 10
of 186
pro vyhledávání: '"LINKE, ALEXANDER"'
Autor:
Linke, Alexander
Akzeptanztests werden in Scrum-Projekten durchgeführt, um umgesetzte Anforderungen iterativ und inkrementell gegen die Erwartungen des Product Owners zu prüfen. Dazu müssen Testartefakte kontinuierlich spezifiziert, gewartet und ausgeführt werden
Externí odkaz:
https://ul.qucosa.de/id/qucosa%3A78697
https://ul.qucosa.de/api/qucosa%3A78697/attachment/ATT-0/
https://ul.qucosa.de/api/qucosa%3A78697/attachment/ATT-0/
Autor:
Ahmed, Naveed, Barrenechea, Gabriel R., Burman, Erik, Guzmán, Johnny, Linke, Alexander, Merdon, Christian
Discretization of Navier-Stokes' equations using pressure-robust finite element methods is considered for the high Reynolds number regime. To counter oscillations due to dominating convection we add a stabilization based on a bulk term in the form of
Externí odkaz:
http://arxiv.org/abs/2007.04012
A nonconforming pressure-robust finite element method for the Stokes equations on anisotropic meshes
Most classical finite element schemes for the (Navier-)Stokes equations are neither pressure-robust, nor are they inf-sup stable on general anisotropic triangulations. A lack of pressure-robustness may lead to large velocity errors, whenever the Stok
Externí odkaz:
http://arxiv.org/abs/2002.12127
Robust discretization methods for (nearly-incompressible) linear elasticity are free of volume-locking and gradient-robust. While volume-locking is a well-known problem that can be dealt with in many different discretization approaches, the concept o
Externí odkaz:
http://arxiv.org/abs/2001.08610
We provide a sharp and optimal generic bound for the angle of the sectorial form associated to a non-symmetric second-order elliptic differential operator with various boundary conditions. Consequently this gives an, in general, sharper $\mathcal{H}^
Externí odkaz:
http://arxiv.org/abs/1912.09169
A novel notion for constructing a well-balanced scheme - a gradient-robust scheme - is introduced and a showcase application for a steady compressible, isothermal Stokes equations is presented. Gradient-robustness means that arbitrary gradient fields
Externí odkaz:
http://arxiv.org/abs/1911.01295
Recent analysis of the divergence constraint in the incompressible Stokes/Navier--Stokes problem has stressed the importance of equivalence classes of forces and how it plays a fundamental role for an accurate space discretization. Two forces in the
Externí odkaz:
http://arxiv.org/abs/1906.03009
The most common mathematical models for electrolyte flows are based on the dilute solution assumption, leading to a coupled system of the Nernst--Planck--Poisson drift-diffusion equations for ion transport and the Stokes resp. Navier--Stokes equation
Externí odkaz:
http://arxiv.org/abs/1901.06941
An improved understanding of the divergence-free constraint for the incompressible Navier--Stokes equations leads to the observation that a semi-norm and corresponding equivalence classes of forces are fundamental for their nonlinear dynamics. The re
Externí odkaz:
http://arxiv.org/abs/1808.10711
Autor:
Linke, Alexander, Rebholz, Leo G.
We consider inf-sup stable mixed methods for the time-dependent incompressible Stokes and Navier--Stokes equations, extending earlier work on the steady (Navier-)Stokes Problem. A locking phenomenon is identified for classical inf-sup stable methods
Externí odkaz:
http://arxiv.org/abs/1808.07028