Results 31 to 40 of about 5,501 (303)
Applied SciencesTo address the limitations of poor robustness, low efficiency, and memory waste in traditional Cartesian grid generation, this paper proposes targeted improvements focusing on three key aspects: the surface mesh data structure, the Cartesian grid data ...
Shuang Meng +5 more
doaj +1 more source
Recent Advances in Cartesian-Grid DFT in Atoms and Molecules
Frontiers in Chemistry, 2022 In the past several decades, density functional theory (DFT) has evolved as a leading player across a dazzling variety of fields, from organic chemistry to condensed matter physics. The simple conceptual framework and computational elegance are the underlying driver for this. This article reviews some of the recent developments that have taken place in
Sangita Majumdar, Amlan K. Roy
openaire +3 more sources
LES of Internal Combustion Engine Flows Using Cartesian Overset Grids
Oil & Gas Science and Technology, 2017 Accurate computations of turbulent flows using the Large-Eddy Simulation (LES) technique with an appropriate SubFilter Scale (SFS) model require low artificial dissipation such that the physical energy cascade process is not perturbed by numerical ...
Falkenstein Tobias +7 more
doaj +1 more source
Immersed Boundary Method Using Ghost Cells in a Three-Dimensional Case
Современные информационные технологии и IT-образование, 2020 When solving numerically gas dynamics problems, one often encounters difficulties in processing regions with complex geometry. Generating consistent computational grids for such areas may be a complex task.
Alexey Rybakov
doaj +1 more source
Conditions for isonemal arrays on a Cartesian grid
Linear Algebra and its Applications, 1984 AbstractThe concept of an isonemal binary array on a Cartesian grid is examined, and rules for constructing all such arrays are identified. Examples are included for the various possible constructions, and tables of compound twillins of periods six and eight are given.
Hoskins, W.D., Thomas, R.S.D.
openaire +2 more sources
The numerical treatment of curved boundary surfaces in an unfitted grid formulation for computational fluid dynamics [PDF]
, 1999 In this thesis a new Cartesian cut-cell scheme has been presented which solves the in- compressible Navier-Stokes equations using a finite volume approach and a staggered grid.
Gao, Zaixiang
core
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
A Cartesian-grid integrated-RBF method for viscoelastic flows [PDF]
, 2010 This paper is concerned with the use of integrated radial-basis-function networks (IRBFNs), Cartesian-grids and point collocation for numerically solving 2D flows of viscoelastic fluids.
Mai-Duy, N. +5 more
core +1 more source
Advanced Materials Technologies, EarlyView.One‐dimensional C4N2H14PbBr4 is shown to have a quasi‐direct electronic band structure and strongly anisotropic transport with polarized broadband emission. A GW/Bethe–Salpeter excited‐state force formalism, supported by polarized Raman and temperature‐dependent photoluminescence, identifies low–frequency Pb–Br phonons that drive ultrafast exciton self‐
Rijan Karkee +7 more
wiley +1 more source
Stability of the DuFort–Frankel Scheme on Unstructured Grids
ComputationThe DuFort–Frankel scheme was introduced in the 1950s to solve parabolic equations, and has been widely used ever since due to its stability and explicit nature. However, for over seven decades, its application has been limited to Cartesian grids.
Nikolay Yavich +2 more
doaj +1 more source