Results 1 to 10 of about 55,201 (283)
Fully Isotropic Fast Marching Methods on Cartesian Grids. [PDF]
Comput Vis ECCV, 2010 The existing Fast Marching methods which are used to solve the Eikonal equation use a locally continuous model to estimate the accumulated cost, but a discontinuous (discretized) model for the traveling cost around each grid point. Because the accumulated cost and the traveling (local) cost are treated differently, the estimate of the accumulated cost ...
Appia V, Yezzi A.
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Hodge decomposition of vector fields in Cartesian grids. [PDF]
SIGGRAPH AsiaWhile explicit representations of shapes such as triangular and tetrahedral meshes are often used for boundary surfaces and 3D volumes bounded by closed surfaces, implicit representations of planar regions and volumetric regions defined by level-set functions have also found widespread applications in geometric modeling and simulations.
Su Z, Tong Y, Wei G, Wei G.
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Conversion of contours to cartesian grids [PDF]
, 2007 A robust and efficient method of calculating a cartesian grid of heights or roughnesses from contour line maps is developed. The purpose of the grids is to serve as input for atmospheric flow solvers such as WAsP Engineering or EllipSys3D. The method builds on Delaunay triangulation constrained to include all contour segments in the triangulation.
Broe, Brian Riget, Mann, Jakob
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THE SLICE BALANCE APPROACH USING AN ADAPTIVE-WEIGHTED CLOSURE [PDF]
EPJ Web of Conferences, 2021 In this paper, we present a formulation of the slice balance approach using a nonlinear closure relation derived analogously from the adaptive-weighted diamond-difference form of the weighted diamond-difference method for Cartesian grids.
Hackemack Michael W.
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Additive two-dimensional splitting schemes for solving 3D suspension transport problems on optimal boundary-adaptive grids with uniform spacing’s in the vertical direction [PDF]
E3S Web of Conferences, 2020 The article considers3D matter transport model in dissolved and suspended forms (impurities) in coastal marine systems. The initial boundary value problem numerical solution is carried out on the basis of local2D splitting schemes.
Sukhinov A, Sidoryakina V
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Mechanical Engineering Journal, 2022 Meshless methods inherently do not require mesh topologies and are practically used for solving partial differential equations in continuum mechanics. However, these methods generally tend to have a higher computational load than conventional mesh-based ...
Takeharu MATSUDA +2 more
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Nuclear Engineering and Technology, 2023 Neutron transport calculations are extremely challenging due to the high computational cost of large and complex problems. A multilevel octree grid algorithm (MLTG) of discrete ordinates method was developed to improve the modeling accuracy and ...
Cong Liu +3 more
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Cartesian Mesh Generation with Local Refinement for Immersed Boundary Approaches
Journal of Marine Science and Engineering, 2021 In this paper, an efficient and robust Cartesian Mesh Generation with Local Refinement for an Immersed Boundary Approach is proposed, whose key feature is the capability of high Reynolds number simulations by the use of wall function models, bypassing ...
Luca Di Angelo +3 more
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Applied Sciences, 2020 The Cartesian cut-cell method is one of the most promising methods for computational fluid dynamics due to its sharp interface treatment. However, the Cartesian cut-cell method and other Cartesian mesh solvers have difficulty with concentrating grid to ...
Yuki Takeda +3 more
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A method for eternally dominating strong grids [PDF]
Discrete Mathematics & Theoretical Computer Science, 2020 In the eternal domination game, an attacker attacks a vertex at each turn and a team of guards must move a guard to the attacked vertex to defend it. The guards may only move to adjacent vertices and no more than one guard may occupy a vertex.
Alizée Gagnon +7 more
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