A High-Order Weighted Compact High Resolution Scheme with Boundary Closures for Compressible Turbulent Flows with ShocksWe present an improved high-order weighted compact high resolution (WCHR) scheme that extends the idea of weighted compact nonlinear schemes (WCNS's) using nonlinear interpolations in conjunction…A. Subramaniam, M. L. Wong, S. K. Lele·Sep 16, 2018SaveLearn
Rear-surface integral method for calculating thermal diffusivity from laser flash experimentsThe laser flash method for measuring thermal diffusivity of solids involves subjecting the front face of a small sample to a heat pulse of radiant energy and recording the resulting temperature rise…Elliot J. Carr·Sep 15, 2018SaveLearn
Transport in a binary mixture of non-spherical molecules: Is hydrodynamics at fault?We consider a new class of model systems to study systematically the role of molecular shape in the transport properties of dense liquids. Our model is a liquid binary mixture where both the…Sarmistha Sarkar, Tuhin Samanta, Biman Bagchi·Sep 15, 2018SaveLearn
Efficient O(N) divide-conquer method with localized natural orbitalsAn efficient O(N) divide-conquer (DC) method based on localized natural orbitals (LNOs) is presented for large-scale density functional theories (DFT) calculations of gapped and metallic systems.…Taisuke Ozaki, Masahiro Fukuda, Gengping Jiang·Sep 15, 2018SaveLearn
Diagnosing numerical Cherenkov instabilities in relativistic plasma simulations based on general meshesNumerical Cherenkov radiation (NCR) or instability is a detrimental effect frequently found in electromagnetic particle-in-cell (EM-PIC) simulations involving relativistic plasma beams. NCR is caused…D. -Y. Na, J. L. Nicolini, R. Lee et al.·Sep 14, 2018SaveLearn
Light-dressed states under intense optical near fieldsWe studied the excitation dynamics of a finite quantum system with an intense optical near field (ONF) from a perspective of light-dressed states. A simple model consisting of a single electron and a…Takashi Takeuchi, Tokuei Sako, Katsuyuki Nobusada·Sep 14, 2018SaveLearn
Comparison of Energy Stable Simulation of Moving Contact Line Problems using a Thermodynamically Consistent Cahn-Hilliard Navier-Stokes ModelLiquid droplets sliding along solid surfaces are a frequently observed phenomenon in nature, e.g., raindrops on a leaf, and in everyday situations, e.g., drops of water in a drinking glass. To model…Henning Bonart, Christian Kahle, Jens-Uwe Repke·Sep 13, 2018SaveLearn
Convolution quadrature methods for time-domain scattering from unbounded penetrable interfacesThis paper presents a class of boundary integral equation methods for the numerical solution of acoustic and electromagnetic time-domain scattering problems in the presence of unbounded penetrable…Ignacio Labarca, Luiz M. Faria, Carlos Pérez-Arancibia·Sep 13, 2018SaveLearn
Finding Efficient Collective Variables: The Case of CrystallizationSeveral enhanced sampling methods such as umbrella sampling or metadynamics rely on the identification of an appropriate set of collective variables. Recently two methods have been proposed to…Yue-Yu Zhang, Haiyang Niu, GiovanniMaria Piccini et al.·Sep 13, 2018SaveLearn
On the Boris solver in particle-in-cell simulationA simple form of the Boris solver in particle-in-cell (PIC) simulation is proposed. It employs an exact solution of the Lorentz-force part, and it is equivalent to the Boris solver with a gyrophase…Seiji Zenitani, Takayuki Umeda·Sep 12, 2018SaveLearn
The Belle II Core SoftwareModern high-energy physics (HEP) enterprises, such as the Belle II experiment at the KEK laboratory in Japan, create huge amounts of data. Sophisticated algorithms for simulation, reconstruction,…T. Kuhr, C. Pulvermacher, M. Ritter et al.·Sep 12, 2018SaveLearn
Oblique-incidence, arbitrary-profile wave injection for electromagnetic simulationsIn an electromagnetic code, a wave can be injected in the simulation domain by prescribing an oscillating field profile at the domain boundary. The process is straightforward when the field profile…Frédéric Pérez, Mickael Grech·Sep 12, 2018SaveLearn
Gyrokinetic simulation of ITG turbulence with toroidal geometry including the magnetic axis by using field-aligned coordinatesAbstract Simulation domain in field-aligned coordinates of the electrostatic gyrokinetic nonlinear turbulence global code, NLT, is extended to include the magnetic axis. The artificial boundary near…Dai Zongliang, Xu Yingfeng, Ye Lei et al.·Sep 12, 2018SaveLearn
A High-Order Variational Multiscale Approach to Turbulence for Compact Nodal SchemesThis article presents a formulation that extends the variational multiscale modelling for compressible large-eddy simulation to a vast family of compact nodal numerical methods represented by the…Farshad Navah, Marta de la Llave Plata, Vincent Couaillier·Sep 11, 2018SaveLearn
An adaptive Cartesian embedded boundary approach for fluid simulations of two- and three-dimensional low temperature plasma filaments in complex geometriesWe review a scalable two- and three-dimensional computer code for low-temperature plasma simulations in multi-material complex geometries. Our approach is based on embedded boundary (EB) finite…Robert Marskar·Sep 11, 2018SaveLearn
Mimicking complex dislocation dynamics by interaction networksTwo-dimensional discrete dislocation models exhibit complex dynamics in relaxation and under external loading. This is manifested both in the time-dependent velocities of individual dislocations and…Henri Salmenjoki, Mikko J. Alava, Lasse Laurson·Sep 11, 2018SaveLearn
A Unified Gas-kinetic Scheme for Continuum and Rarefied Flows VI: Dilute Disperse Gas-Particle Multiphase SystemIn this paper, a unified gas kinetic scheme for multiphase dilute gas-particle system is proposed. The UGKS multiphase (UGKS-M) is a finite volume method, which captures flow physics in the regimes…Chang Liu, Zhao Wang, Kun Xu·Sep 11, 2018SaveLearn
Third-order elastic coefficients and logarithmic strain in constitutive and finite element modelling of anisotropic elasticityThird-order elastic coefficients (TOECs) have been measured experimentally and tabulated with pretty good accuracy since the middle of the previous century. In the classical acoustic measurement…Paweł Dłużewski, Marcin Maździarz, Piotr Tauzowski·Sep 10, 2018SaveLearn
Seeing Permeability From Images: Fast Prediction with Convolutional Neural NetworksFast prediction of permeability directly from images enabled by image recognition neural networks is a novel pore-scale modeling method that has a great potential. This article presents a framework…Jin-Long Wu, Xiao-Long Yin, Heng Xiao·Sep 9, 2018SaveLearn
Polarizability and impurity screening for phosphoreneUsing a tight-binding Hamiltonian for phosphorene, we have calculated the real part of the polarizability and the corresponding dielectric function, Re[ε(q,ω)], at zero temperature (T = 0)…Po Hsin Shih, Thi Nga Do, Godfrey Gumbs et al.·Sep 8, 2018SaveLearn
A GPU-enabled implicit Finite Volume solver for the ideal two-fluid plasma model on unstructured gridsThis paper describes the main features of a pioneering unsteady solver for simulating ideal two-fluid plasmas on unstructured grids, taking profit of GPGPU (General-purpose computing on graphics…Isaac Alonso Asensio, Alejandro Alvarez Laguna, Mohamed Hassanine Aissa et al.·Sep 7, 2018SaveLearn
Lattice Boltzmann model with self-tuning equation of state for multiphase flowsA novel lattice Boltzmann (LB) model for multiphase flows is developed that complies with the thermodynamic foundations of kinetic theory. By directly devising the collision term for LB equation at…Rongzong Huang, Huiying Wu, Nikolaus A. Adams·Sep 7, 2018SaveLearn
A novel Hermite RBF-based differential quadrature method for solving two-dimensional variable-order time fractional advection-diffusion equation with Neumann boundary conditionIn this paper, a novel Hermite radial basis function-based differential quadrature method (H-RBF-DQ) is presented. This new method is designed to treat derivative boundary conditions accurately. The…Jianming Liu, Xinkai Li·Sep 7, 2018SaveLearn
Nonlinear Fourier Transform of Time-Limited and One-sided SignalsIn this article, we study the properties of the nonlinear Fourier spectrum in order to gain better control of the temporal support of the signals synthesized using the inverse nonlinear Fourier…Vishal Vaibhav·Sep 7, 2018SaveLearn
A new meshless approach for three dimensional fluid flow and related heat transfer problemsThe mathematical formulation, basic concept and numerical implementation of a new meshless method for solving three dimensional fluid flow and related heat transfer problems are presented in this…Cheng-An Wang, Hamou Sadat, Christian Prax·Sep 6, 2018SaveLearn