Search Results - "Behr, Marek"

Simplex space‐time meshes in compressible flow simulations by Danwitz, Max, Karyofylli, Violeta, Hosters, Norbert, Behr, Marek

“…Summary Employing simplex space‐time meshes enlarges the scope of compressible flow simulations. The simultaneous discretization of space and time with simplex…”
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Restructuring of colloidal aggregates in shear flows and limitations of the free-draining approximation by Becker, Volker, Schlauch, Eva, Behr, Marek, Briesen, Heiko

“…Restructuring of colloidal aggregates is investigated. The figure shows snapshots of the compaction of an aggregate in a shear flow. We investigated the…”
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Shape optimization in steady blood flow: A numerical study of non-Newtonian effects by Abraham, Feby, Behr, Marek, Heinkenschloss, Matthias

“…We investigate the influence of the fluid constitutive model on the outcome of shape optimization tasks, motivated by optimal design problems in biomedical…”
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A Tensor-based Measure for Estimating Blood Damage by Arora, Dhruv, Behr, Marek, Pasquali, Matteo

“…:  Implantable ventricular assist devices give hope of a permanent clinical solution to heart failure. These devices, both pulsatile‐ and continuous‐flow, are…”
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On the application of slip boundary condition on curved boundaries by Behr, Marek

“…Hydrodynamic simulations of sloshing phenomena often involve the application of slip boundary condition at the wetted surfaces. If these surfaces are curved,…”
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Simulating dense granular flow using the μ(I)‐rheology within a space‐time framework by Gesenhues, Linda, Behr, Marek

“…A space‐time framework is applied to simulate dense granular flow. Two different numerical experiments are performed: a column collapse and a dam break on an…”
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Eulerian formulation of the tensor-based morphology equations for strain-based blood damage modeling by Dirkes, Nico, Key, Fabian, Behr, Marek

“…The development of blood-handling medical devices, such as ventricular assist devices, requires the analysis of their biocompatibility. Among other aspects,…”
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Simplex space-time meshes in finite element simulations by Behr, Marek

“…A straightforward method for generating simplex space–time meshes is presented, allowing arbitrary temporal refinement in selected portions of space–time…”
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A multi-vector interface quasi-Newton method with linear complexity for partitioned fluid–structure interaction by Spenke, Thomas, Hosters, Norbert, Behr, Marek

“…In recent years, interface quasi-Newton methods have gained growing attention in the fluid–structure interaction community by significantly improving…”
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Stabilized finite element methods for a fully-implicit logarithmic reformulation of the Oldroyd-B constitutive law by Wittschieber, Stefan, Demkowicz, Leszek, Behr, Marek

“…Logarithmic conformation reformulations for viscoelastic constitutive laws have alleviated the high Weissenberg number problem, and the exploration of highly…”
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Lattice Boltzmann simulations on the tumbling to tank-treading transition: effects of membrane viscosity by Guglietta, Fabio, Behr, Marek, Biferale, Luca, Falcucci, Giacomo, Sbragaglia, Mauro

“…The tumbling to tank-treading (TB-TT) transition for red blood cells (RBCs) has been widely investigated, with a main focus on the effects of the viscosity…”
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Metric-based anisotropic mesh adaptation for viscoelastic flows by Wittschieber, Stefan, Rangarajan, Ajay, May, Georg, Behr, Marek

“…The computation of flows of viscoelastic fluids is expensive compared to standard fluids. Besides degrees-of-freedom for velocity and pressure, the…”
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Boundary-conforming finite element methods for twin-screw extruders: Unsteady - temperature-dependent - non-Newtonian simulations by Helmig, Jan, Behr, Marek, Elgeti, Stefanie

“…•Mesh update method allows to use boundary-conforming methods for twin-screw extruders.•Very efficient method; no re-meshing needed and only based on algebraic…”
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A multiphysics modeling approach for in-stent restenosis: Theoretical aspects and finite element implementation by Manjunatha, Kiran, Behr, Marek, Vogt, Felix, Reese, Stefanie

“…Development of in silico models that capture progression of diseases in soft biological tissues are intrinsic in the validation of the hypothesized cellular…”
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Finite-element formulation for advection–reaction equations with change of variable and discontinuity capturing by Haßler, Stefan, Ranno, Anna Maria, Behr, Marek

“…We propose a change of variable approach and discontinuity capturing methods to ensure physical constraints for advection–reaction equations discretized by the…”
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Fluid–structure interaction with NURBS-based coupling by Hosters, Norbert, Helmig, Jan, Stavrev, Atanas, Behr, Marek, Elgeti, Stefanie

“…Engineering design via CAD software relies on Non-Uniform Rational B-Splines (NURBS) as a means for representing and communicating geometry. Therefore, in…”
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Computational modeling of in-stent restenosis: Pharmacokinetic and pharmacodynamic evaluation by Manjunatha, Kiran, Schaaps, Nicole, Behr, Marek, Vogt, Felix, Reese, Stefanie

“…Persistence of the pathology of in-stent restenosis even with the advent of drug-eluting stents warrants the development of highly resolved in silico models…”
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Spline-based space-time finite element approach for fluid-structure interaction problems with a focus on fully enclosed domains by Make, Michel, Spenke, Thomas, Hosters, Norbert, Behr, Marek

“…Non-Uniform Rational B-Spline (NURBS) surfaces are commonly used within Computer-Aided Design (CAD) tools to represent geometric objects. When using…”
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Time‐continuous and time‐discontinuous space‐time finite elements for advection‐diffusion problems by von Danwitz, Max, Voulis, Igor, Hosters, Norbert, Behr, Marek

“…We construct four variants of space‐time finite element discretizations based on linear tensor‐product and simplex‐type finite elements. The resulting…”
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A physics-informed deep learning framework for modeling of coronary in-stent restenosis by Shi, Jianye, Manjunatha, Kiran, Behr, Marek, Vogt, Felix, Reese, Stefanie

“…Machine learning (ML) techniques have shown great potential in cardiovascular surgery, including real-time stenosis recognition, detection of stented coronary…”
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