Results 11 to 20 of about 215,493 (276)
Feature study of body-fitted Cartesian grids used in casting numerical simulation [PDF]
China Foundry, 2013 A type of mesh called a body-fitted Cartesian mesh, very different from the traditional structured body-fitted mesh, is established. At first, the right parallelepiped mesh is generated, then, a feature analysis is done on the cross sections. These cross
Li Ri, Wang Bin, Xiong Shoumei
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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
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Synthetic Turbulence Generation for LES on Unstructured Cartesian Grids [PDF]
, 2007 A parallel CFD code to solve incompressible fluid flow on unstructured Cartesian meshes has been developed almost from ground up. Turbulence statistics have been computed using the Large Eddy Simulation technique.
Bin Mohamad Badry, Ahmad Badarudin
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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.
Mann, Jakob; id_orcid 0000-0002-6096-611X +1 more
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Neural Fields for Highly Accelerated 2D Cine Phase Contrast MRI. [PDF]
Adv Sci (Weinh)ABSTRACT 2D cine phase contrast (CPC) MRI provides quantitative information on blood velocity and flow within the human vasculature. However, data acquisition is time‐consuming, motivating the reconstruction of the velocity field from undersampled measurements to reduce scan times. In this work, neural fields are proposed as a continuous spatiotemporal
Arratia P +7 more
europepmc +2 more sources
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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Bijective Rigid Motions of the 2D Cartesian Grid [PDF]
, 2016 Rigid motions are fundamental operations in image processing. While they are bijective and isometric in $$\mathbb {R}^2$$, they lose these properties when digitized in $$\mathbb {Z}^2$$. To investigate these defects, we first extend a combinatorial model of the local behavior of rigid motions on $$\mathbb {Z}^2$$, initially proposed by Nouvel and ...
Pluta, Kacper +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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Anisotropic Cartesian grid adaptation
Fluids 2000 Conference and Exhibit, 2000 A three-dimensional anisotropic Cartesian grid adaptation method has been developed to improve computational efficiency by reducing the number of cells. The method can produce cells with unlimited aspect ratio while keeping the grid reasonably smooth. A test case of 2D supersonic flow around a cylinder shows that the number of cells is reduced to one ...
Lahur, Paulus R., Nakamura, Yoshiaki
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Parallel implementation of the grid-characteristic method in the case of explicit contact boundaries [PDF]
Компьютерные исследования и моделирование, 2018 We consider an application of the Message Passing Interface (MPI) technology for parallelization of the program code which solves equation of the linear elasticity theory.
Andrey M. Ivanov +1 more
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