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Uniform Grids, Fixed Mesh Refinement, and Adaptive Mesh Refinement 80

Relativistic MHD with Adaptive Mesh Refinement

Relativistic MHD with Adaptive Mesh Refinement

... Finally, we discretize the continuum equations first in space (creating a semi-discrete system) and then discretize in time using the method of lines. This gives us considerable flexibility in choosing discretization ...

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MiniAMR - A miniapp for Adaptive Mesh Refinement

MiniAMR - A miniapp for Adaptive Mesh Refinement

... Figure 4: Test case 1 on Stampede for Morton with and without NUMA aware- ness front. We checked for refinement/coarsening at even time steps (ref req = 2). The rate of expansion was based on measurements from ...

21

Adaptive mesh refinement for computational aeroacoustics

Adaptive mesh refinement for computational aeroacoustics

... refined mesh. Solutions computed on an adaptively refined mesh were compared to solutions computed on a uniform mesh through two ...the uniform mesh ...

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Adaptive mesh refinement in topology optimization

Adaptive mesh refinement in topology optimization

... Figure 4.9: Von Mises stress field for the compliant mechanism design with no stress constraint. 4.6 Conclusions We present a high resolution topology optimization framework that accommodates more than three million ...

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A new parallelization scheme for adaptive mesh refinement

A new parallelization scheme for adaptive mesh refinement

... Consider a problem similar to the above, but assume a coarse level that has three times as many points than each of the other, identical levels. In this case, and unless the coarse level does not completely dominate the ...

10

Visualization of Scalar Adaptive Mesh Refinement Data

Visualization of Scalar Adaptive Mesh Refinement Data

... VisIt’s handling of AMR data is made possible by marking coarse cells that are refined at a lower level as “ghost.” This marking is done by adding an array to each patch that designates the status of each cell (ghost or ...

14

Visualization Tools for Adaptive Mesh Refinement Data

Visualization Tools for Adaptive Mesh Refinement Data

... grids, numerical values in a chosen format, subregions, animations, volumet- ric renderings, contour plots, line graphs and 2D vector fields using arrow glyphs. Amrvis works with 2D and 3D data, requires no ...

15

Adaptive mesh refinement method for CFD applications

Adaptive mesh refinement method for CFD applications

... For the fluid dynamics simulations, the governing equations, the spatial discretiza- tion on unstructured grids and the numerical schemes for solving Navier-Stokes equa- tions are presented. The equations follow a ...

158

A fast, robust, and simple implicit method for adaptive time-stepping on adaptive mesh-refinement grids

A fast, robust, and simple implicit method for adaptive time-stepping on adaptive mesh-refinement grids

... for adaptive time-stepping on adaptive mesh-refinement grids Commerçon, B ; Debout, V ; Teyssier, R Abstract: ...for adaptive mesh-refinement ...on adaptive ...

12

Evolving a puncture black hole with fixed mesh refinement

Evolving a puncture black hole with fixed mesh refinement

... a uniform Cartesian grid of a certain number of grid cells, a fixed number of timesteps, and a certain number of PEs (Processing Elements), and then increased the number of PEs to run a larger job while the ...

16

Adaptive mesh refinement techniques for electrical impedance tomography

Adaptive mesh refinement techniques for electrical impedance tomography

... Our results indicate that it is possible to reduce the number of nodes required by at least a factor of three to obtain an accurate image reconstruction, over a uniform refinement strategy. This results in ...

6

Numerical Solutions of the Klein-Gordon Equation with Adaptive Mesh Refinement

Numerical Solutions of the Klein-Gordon Equation with Adaptive Mesh Refinement

... the adaptive meshes have a coupled evolution, which consists in a singular grid with different resolutions in some parts of the domain, and no different grids evolving ...

5

A Grid-based Clustering Algorithm using Adaptive Mesh Refinement

A Grid-based Clustering Algorithm using Adaptive Mesh Refinement

... resolution mesh grid, the AMR clustering algorithm first adaptively creates different resolution grids based on the regional density and these grids comprise a hierarchy tree that represents the ...

9

Parallel cell projection rendering of adaptive mesh refinement data

Parallel cell projection rendering of adaptive mesh refinement data

... 9 Conclusions and Future Work We have implemented and compared several distribution strategies for direct volume rendering of AMR hierarchies. Homogeneous subdivision supports efficient rendering of AMR data for ...

11

Block-structured Adaptive Mesh Refinement - Theory, Implementation and Application

Block-structured Adaptive Mesh Refinement - Theory, Implementation and Application

... describe refinement regions geometrically and subgrids with the same refinement factor in all space directions and also in time are generated according to ...coarse-level grids and an entire ...

54

An adaptive mesh refinement method for solution of the transported PDF equation

An adaptive mesh refinement method for solution of the transported PDF equation

... The same initial conditions were used for the AMR test and the effect of varying the resolution by changing the number of grid levels was explored. From Figure 9, we can see that, for the two species case, a good ...

19

Unifying Geometry and Mesh Adaptive Refinement Using Loop Subdivision

Unifying Geometry and Mesh Adaptive Refinement Using Loop Subdivision

... control mesh part multiple times and then generating multiple subdivision partial ...non-uniform refinement method could require heavy storage, since all the hierarchical connectivity information ...

189

Multilevel sparse approximate inverse preconditioners for adaptive mesh refinement

Multilevel sparse approximate inverse preconditioners for adaptive mesh refinement

... Introduction Adaptive Mesh Refinement (AMR) was proposed by Berger and Oliger in 1984 to solve hyperbolic partial differential equations (PDEs) with discontinuous coefficients, shocks, and steep gradients ...

18

Tetrahedral Mesh Refinement in Distributed Environments

Tetrahedral Mesh Refinement in Distributed Environments

... The Adaptive Mesh Refinement is one of the main tech- niques used for the solution of Partial Differential Equa- ...few refinement methods especially for parallel en- ...the refinement ...

8

Parallel generalized Delaunay mesh refinement

Parallel generalized Delaunay mesh refinement

... e uniform parallel Delaunay refinement algorithm for the case when the triangle area bound A is not fixed, but rather changes according to a user-supplied function A (x, y) : Cl —> ...a ...

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