Geometric electrostatic particle-in-cell algorithm on unstructured meshes
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Plasma Physics"
DOI: 10.1017/s0022377821000702
Abstract: We present a geometric particle-in-cell (PIC) algorithm on unstructured meshes for studying electrostatic perturbations with frequency lower than electron gyrofrequency in magnetized plasmas. In this method, ions are treated as fully kinetic particles and electrons… read more here.
Keywords: particle cell; pic; algorithm unstructured; unstructured meshes ... See more keywords
Joint Application of Secondary Field and Coupled Potential Formulations to Unstructured Meshes for 3-D CSEM Forward Modeling
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2022.3212884
Abstract: We developed a 3-D joint modeling algorithm of controlled source electromagnetic (CSEM) responses with unstructured meshes. The crucial component is to construct an approximating matrix from the stiffness matrix based on coupled potential formulation. Through… read more here.
Keywords: application; secondary field; coupled potential; unstructured meshes ... See more keywords
Wavefield Separation Algorithm of Helmholtz Theory-Based Discontinuous Galerkin Method Using Unstructured Meshes on GPU
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2023.3234915
Abstract: In the field of geophysics, the Helmholtz decomposition (HD) formula is mainly numerically discretized by the finite difference method (FDM), which limits its application to a uniform regular grid only. Few scholars note wavefield separation… read more here.
Keywords: discontinuous galerkin; separation algorithm; galerkin method; unstructured meshes ... See more keywords
Matrix-Free Method for Transient Maxwell-Thermal Cosimulation in Arbitrary Unstructured Meshes
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2018.2875105
Abstract: Existing electrical–thermal cosimulation methods require solving a system matrix when handling inhomogeneous materials and irregular geometries discretized into unstructured meshes. In this paper, a matrix-free method is developed for cosimulating full-wave Maxwell’s equations and the… read more here.
Keywords: method; free method; thermal cosimulation; unstructured meshes ... See more keywords
Grid-Characteristic Method on Tetrahedral Unstructured Meshes with Large Topological Inhomogeneities
Sign Up to like & getrecommendations! Published in 2018 at "Computational Mathematics and Mathematical Physics"
DOI: 10.1134/s0965542518080183
Abstract: A key difficulty faced when grid-characteristic methods on tetrahedral meshes are used to compute structures of complex geometry is the high computational cost of the problem. Formally, grid-characteristic methods can be used on any tetrahedral… read more here.
Keywords: grid characteristic; characteristic methods; method; geometry ... See more keywords
Simulating Aerodynanics of a Moving Body Specified by Immersed Boundaries on Dynamically Adaptive Unstructured Meshes
Sign Up to like & getrecommendations! Published in 2019 at "Mathematical Models and Computer Simulations"
DOI: 10.1134/s2070048219010034
Abstract: Abstract —An integrated technology is developed for the numerical simulation of the aerodynamics of moving bodies described by the immersed body method on unstructured meshes. The calculation accuracy is enhanced by the dynamic adaptation of… read more here.
Keywords: body specified; aerodynanics moving; body; unstructured meshes ... See more keywords
Parallel Deterministic Transport Sweeps of Structured and Unstructured Meshes with Overloaded Mesh Decompositions
Sign Up to like & getrecommendations! Published in 2017 at "Nuclear Science and Engineering"
DOI: 10.13182/nse16-34
Abstract: The efficiency of discrete ordinates transport sweeps depends on the scheduling algorithm, the domain decomposition, the problem to be solved, and the computational platform. Sweep scheduling algorithms may be categorized by their approach to several… read more here.
Keywords: structured unstructured; sweeps structured; domain overloading; transport sweeps ... See more keywords
FESOM-C v.2: coastal dynamics on hybrid unstructured meshes
Sign Up to like & getrecommendations! Published in 2019 at "Geoscientific Model Development"
DOI: 10.5194/gmd-12-1009-2019
Abstract: Abstract. We describe FESOM-C, the coastal branch of the Finite-volumE Sea ice – Ocean Model (FESOM2), which shares with FESOM2 many numerical aspects, in particular its finite-volume cell-vertex discretization. Its dynamical core differs in the… read more here.
Keywords: dynamics hybrid; model; fesom coastal; coastal dynamics ... See more keywords