Results 11 to 20 of about 55,201 (283)
Planar potential flow on Cartesian grids
Journal of Fluid Mechanics, 2022 Potential flow has many applications, including the modelling of unsteady flows in aerodynamics. For these models to work efficiently, it is best to avoid Biot–Savart interactions. This work presents a grid-based treatment of potential flows in two dimensions and its use in a vortex model for simulating unsteady aerodynamic flows.
Diederik Beckers, Jeff D. Eldredge
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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 ...
Paulus R. Lahur, Yoshiaki Nakamura
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Anisotropic Fast-Marching on cartesian grids using Lattice Basis Reduction [PDF]
, 2014 We introduce a modification of the Fast Marching Algorithm, which solves the generalized eikonal equation associated to an arbitrary continuous riemannian metric, on a two or three dimensional domain.
Jean-Marie Mirebeau, Sermesant M.
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Symmetry without Symmetry: Numerical Simulation of Axisymmetric Systems using Cartesian Grids [PDF]
, 1999 We present a new technique for the numerical simulation of axisymmetric systems. This technique avoids the coordinate singularities which often arise when cylindrical or polar-spherical coordinate finite difference grids are used, particularly in ...
Alcubierre M. +30 more
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Homotopic Affine Transformations in the 2D Cartesian Grid
Journal of Mathematical Imaging and Vision, 2022 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Passat, Nicolas +3 more
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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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Guiding center simulations on curvilinear grids*
ESAIM: Proceedings and Surveys, 2016 Semi-Lagrangian guiding center simulations are performed on sinusoidal perturbations of cartesian grids, and on deformed polar grid with different boundary conditions.
Hamiaz Adnane +3 more
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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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Convergence of the MAC scheme for the compressible stationary Navier-Stokes equations [PDF]
, 2017 We prove in this paper the convergence of the Marker and Cell (MAC) scheme for the discretization of the steady state compressible and isentropic Navier-Stokes equations on two or three-dimensional Cartesian grids.
Gallouet, Thierry +3 more
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Computation of Ice Shedding Trajectories Using Cartesian Grids, Penalization, and Level Sets
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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