Results 11 to 20 of about 5,501 (303)
A Navier-Stokes Solver for Compressible Turbulent Flows on Quadtree and Octree Based Cartesian Grids [PDF]
Journal of Applied Fluid Mechanics, 2019 Cartesian grids represent a special extent in unstructured grid literature. They employ chiefly created algorithms to produce automatic meshing while simulating flows around complex geometries without considering shape of the bodies.
E. Kara, A. İ. Kutlar, M. H. Aksel
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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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Computation of Ice Shedding Trajectories Using Cartesian Grids, Penalization, and Level Sets [PDF]
Modelling and Simulation in Engineering, 2011 We propose to model ice shedding trajectories by an innovative paradigm that is based on cartesian grids, penalization and level sets. The use of cartesian grids bypasses the meshing issue, and penalization is an efficient alternative to explicitly ...
Héloïse Beaugendre +3 more
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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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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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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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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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A numerical study of 2D integrated RBFNs incorporating Cartesian grids for solving 2D elliptic differential problems [PDF]
, 2010 This article reports a numerical discretization scheme, based on two-dimensional integrated radial-basis-function networks (2D-IRBFNs) and rectangular grids, for solving second-order elliptic partial differential equations defined on 2D nonrectangular ...
Mai-Duy, Nam, Tran-Cong, Thanh
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Full potential flow computations using cartesian grids [PDF]
, 1987 The main thrust of this paper has been the13; exploitation of Cartesian grids in the numerical13; solution of transonic full potential equation.13; Notwithstanding the present-day popularity for13; the use of body-wrapped coordinare systems in the13 ...
R. RANGARAJAN +7 more
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