Building a scalable python distribution for HEP data analysisThere are numerous approaches to building analysis applications across the high-energy physics community. Among them are Python-based, or at least Python-driven, analysis workflows. We aim to ease…David Lange·Apr 24, 2018SaveLearn
Dissipation-Based Continuation Method for Multiphase Flow in Heterogeneous Porous MediaIn reservoir simulation, solution of the coupled systems of nonlinear algebraic equations that are associated with fully-implicit (backward Euler) discretization is challenging. Having a robust and…Jiamin Jiang, Hamdi A. Tchelepi·Apr 23, 2018SaveLearn
Compressive Transition Path SamplingAlgorithms for rare event complex systems simulations are proposed. Compressed Sensing (CS) has revolutionized our understanding of limits in signal recovery and has forced us to re-define…Mehmet Süzen·Apr 21, 2018SaveLearn
GPU Accelerated Atomistic Energy Barrier Calculations of Skyrmion AnnihilationsWe present GPU accelerated simulations to calculate the annihilation energy of magnetic skyrmions in an atomistic spin model considering dipole-dipole, exchange, uniaxial-anisotropy and…Paul Heistracher, Claas Abert, Florian Bruckner et al.·Apr 19, 2018SaveLearn
Identification of higher-order continua equivalent to a Cauchy elastic compositeA heterogeneous Cauchy elastic material may display micromechanical effects that can be modeled in a homogeneous equivalent material through the introduction of higher-order elastic continua.…A. Bacigalupo, M. Paggi, F. Dal Corso et al.·Apr 19, 2018SaveLearn
Ideal GLM-MHD: About the entropy consistent nine-wave magnetic field divergence diminishing ideal magnetohydrodynamics equationsThe paper presents two contributions in the context of the numerical simulation of magnetized fluid dynamics. First, we show how to extend the ideal magnetohydrodynamics (MHD) equations with an…Dominik Derigs, Andrew R. Winters, Gregor J. Gassner et al.·Apr 19, 2018SaveLearn
QuSpin: a Python Package for Dynamics and Exact Diagonalisation of Quantum Many Body Systems. Part II: bosons, fermions and higher spinsWe present a major update to QuSpin, SciPostPhys.2.1.003 -- an open-source Python package for exact diagonalization and quantum dynamics of arbitrary boson, fermion and spin many-body systems,…Phillip Weinberg, Marin Bukov·Apr 18, 2018SaveLearn
Fixed-density boundary conditions in overdamped Langevin simulations of diffusion in channelsWe consider the numerical integration of Langevin equations for particles in a channel, in the presence of boundary conditions fixing the concentration values at the ends. This kind of boundary…Laureano Ramírez-Piscina·Apr 18, 2018SaveLearn
Simulations of intermittent two-phase flows in pipes using smoothed particle hydrodynamicsSlug flows are a typical intermittent two-phase flow pattern that can occur in submarine pipelines connecting the wells to the production facility and that is known to cause undesired consequences.…Thomas Douillet-Grellier, Florian De Vuyst, Henri Calandra et al.·Apr 18, 2018SaveLearn
A multi-physics battery model with particle scale resolution of porosity evolution driven by intercalation strain and electrolyte flowWe present a coupled continuum formulation for the electrostatic, chemical, thermal, mechanical and fluid physics in battery materials. Our treatment is at the particle scale, at which the active…Zhenlin Wang, Krishna Garikipati·Apr 17, 2018SaveLearn
Numerical approximation of a phase-field surfactant model with fluid flowModelling interfacial dynamics with soluble surfactants in a multiphase system is a challenging task. Here, we consider the numerical approximation of a phase-field surfactant model with fluid flow.…Guangpu Zhu, Jisheng Kou, Shuyu Sun et al.·Apr 17, 2018SaveLearn
Second order front tracking algorithm for Stefan problem on a regular gridA brief review of the Stefan problem of solidification from a mixture, and its main numerical solution methods is given. Simulation of this problem in 2D or 3D is most practically done on a regular…Robert D. Groot·Apr 17, 2018SaveLearn
Multiphase flows with compressible and incompressible phasesGas bubbles immersed in a liquid and flowing through a large pressure gradient undergoes volumetric deformation in addition to possible deviatoric deformation. While the high density liquid phase can…Prapanch Nair, Gaurav Tomar·Apr 17, 2018SaveLearn
Influence of capillary viscous flow on melting dynamicsThe rate of melting of a solid and the rate of deformation of the resulting melt due to capillary forces are comparable in additive manufacturing applications. This dynamic structural change of a…Michael Blank, Prapanch Nair, Thorsten Pöschel·Apr 17, 2018SaveLearn
von Neumann Stability Analysis of Globally Constraint-Preserving DGTD and PNPM Schemes for the Maxwell Equations using Multidimensional Riemann SolversThe time-dependent equations of computational electrodynamics (CED) are evolved consistent with the divergence constraints. As a result, there has been a recent effort to design finite volume time…Dinshaw S. Balsara, Roger Kappeli·Apr 16, 2018SaveLearn
Atomistic and mean-field estimates of effective stiffness tensor of nanocrystalline copperThe full elasticity tensor for nano-crystalline copper is derived in molecular simulations by performing numerical tests for a set of generated samples of the polycrystalline material. The results…Katarzyna Kowalczyk-Gajewska, Marcin Maździarz·Apr 16, 2018SaveLearn
Numerical solution of stochastic master equations using stochastic interacting wave functionsWe develop a new approach for solving stochastic quantum master equations with mixed initial states. First, we obtain that the solution of the jump-diffusion stochastic master equation is represented…C. M. Mora, J. Fernández, R. Biscay·Apr 16, 2018SaveLearn
Peculiar magnetic properties of NC6 and NC12 layered compounds from first principlesIn the context of characterizing nitrogen poor carbo-nitrides for different applications, identification of an unusual onset of spin polarization of N(p) states has been shown. A full saturation up…Samir F Matar·Apr 12, 2018SaveLearn
Homogenization of a Biot-Stokes system modeling deformable vuggy porous mediaVugs are small to medium-sized cavities inside rock, which have significant effects on the fluid flow in rock. Moreover, the presence of vugs may have non-trivial impacts on the geomechanical…Zhaoqin Huang, Xu Zhou, Tao Huang et al.·Apr 12, 2018SaveLearn
Electromagnetic scattering in Schwarzschild space-time: Finite difference time domain with Green function methodThe finite difference time domain (FDTD) algorithm and Green function algorithm are implemented into the numerical simulation of electromagnetic scattering by ordinary objects in Schwarzschild…Shouqing Jia·Apr 12, 2018SaveLearn
Saturation in regular, exotic and random pore networksPorcolation simulations were carried out on various networks; both regular and irregular. The saturation curve was obtained for cubic networks, localized and completely random 3D networks and…Máté Benjámin Vizi, Péter Árpád Mizsák, Tamás Kalmár-Nagy·Apr 11, 2018SaveLearn
Afterlive: A performant code for Vlasov-Hybrid simulationsA parallelized implementation of the Vlasov-Hybrid method [Nunn, 1993] is presented. This method is a hybrid between a gridded Eulerian description and Lagrangian meta-particles. Unlike the…Patrick Kilian, Cedric Schreiner, Felix Spanier·Apr 11, 2018SaveLearn
Magnetohydrodynamics with GAMERGAMER, a parallel Graphic-processing-unit-accelerated Adaptive-MEsh-Refinement hydrodynamic code, has been extended to support magnetohydrodynamics (MHD) with both the corner-transport-upwind (CTU)…Ui-Han Zhang, Hsi-Yu Schive, Tzihong Chiueh·Apr 10, 2018SaveLearn
Density Estimation Techniques for Multiscale Coupling of Kinetic Models of the Plasma Material InterfaceIn this work we analyze two classes of Density-Estimation techniques which can be used to consistently couple different kinetic models of the plasma-material interface, intended as the region of…Shane Keniley, Davide Curreli·Apr 10, 2018SaveLearn
Simulation of Circular Cylindrical Metasurfaces using GSTC-MoMA modeling of circular cylindrical metasurfaces using Method of Moments (MoM) based on Generalized Sheet Transition Conditions (GSTCs) is presented. GSTCs are used to link the integral equations for…Srikumar Sandeep, Shao Ying Huang·Apr 10, 2018SaveLearn