Results 271 to 280 of about 5,478,967 (327)
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Mesh Optimization for Discontinuous Galerkin Methods Using a Continuous Mesh Model
AIAA Journal, 2018A method for anisotropic mesh adaptation and optimization for high-order discontinuous Galerkin schemes is presented.
A. Rangarajan, A. Balan, G. May
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Untangling polygonal and polyhedral meshes via mesh optimization
Engineering with Computers, 2014We propose simple and efficient optimization-based untangling strategies for 2D polygonal and 3D polyhedral meshes. The first approach uses a size-based mesh metric, which eliminates inverted elements by averaging element size over the entire mesh.
Jibum Kim, Jaeyong Chung
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Optimization of Tetrahedral Meshes
1995Finite element computations are all the more exact if we start from “good” elements. We are interested in meshes where the elements are tetrahedra and we shall develop utilities allowing us to improve the quality of these meshes.
Eric Brière de L’isle +1 more
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Integr. Comput. Aided Eng., 2020
Large-scale 3D models consume large computing and storage resources. To address this challenging problem, this paper proposes a new method to obtain the optimal simplified 3D mesh models with the minimum approximation error.
Yaqian Liang, Fazhi He, Xiantao Zeng
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Large-scale 3D models consume large computing and storage resources. To address this challenging problem, this paper proposes a new method to obtain the optimal simplified 3D mesh models with the minimum approximation error.
Yaqian Liang, Fazhi He, Xiantao Zeng
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Optimal particle-mesh algorithms
Journal of Computational Physics, 1975Abstract Optimal particle-mesh algorithms are regarded as those which, for a given computational cost, best represent the physics relevant to the evolution of a computer experiment. A method to determine for arbitrary interparticle force laws a best combination of charge assignment and potential solvers in both momentum and energy conserving schemes ...
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Optimizing Discontinuity Meshing Radiosity
1995Discontinuity meshing radiosity is no longer new to the Computer Graphics community. When trying to closely model, with patches, the true radiance function over some surface, it is now well established that errors are inevitable if patch boundaries take no account of discontinuities in the true radiance function [16, 13, 5].
Neil Gatenby, W. T. Hewitt
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On smooth or 0/1 designs of the fixed-mesh element-based topology optimization
Advances in Engineering Software, 2020The traditional element-based topology optimization based on material penalization typically aims at a 0/1 design. Our numerical experiments reveal that the compliance of a smooth design is overestimated when material properties of boundary intermediate ...
Xiaodong Huang
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OPTIMIZATION STRATEGIES IN UNSTRUCTURED MESH GENERATION
International Journal for Numerical Methods in Engineering, 1996Summary: We propose a new optimization strategy for unstructured meshes that, when coupled with existing automatic generators, produces meshes of high quality for arbitrary domains in three dimensions. Our optimizer is based upon a non-differentiable definition of the quality of the mesh which is natural for finite element or finite volume users: the ...
Zavattieri, Pablo D. +2 more
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1993
The optimization package OPTIM3D has been extensively tested within an industrial environment. Conclusions concerning single-block and multi-blocks optimization are given. The tuning of the parameters is synthetically explained. Operationnal procedures for improving the efficiency of the program are proposed.
T. Fol, V. Tréguer-Katossky
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The optimization package OPTIM3D has been extensively tested within an industrial environment. Conclusions concerning single-block and multi-blocks optimization are given. The tuning of the parameters is synthetically explained. Operationnal procedures for improving the efficiency of the program are proposed.
T. Fol, V. Tréguer-Katossky
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Advances in Engineering Software, 2020
This paper proposes a new high-efficiency isogeometric topology optimization (HITO), including three part: multilevel mesh, multigrid conjugate gradient method (MGCG) and local-update strategy, which improves the efficiency in three aspects: mesh scale ...
Yingjun Wang +5 more
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This paper proposes a new high-efficiency isogeometric topology optimization (HITO), including three part: multilevel mesh, multigrid conjugate gradient method (MGCG) and local-update strategy, which improves the efficiency in three aspects: mesh scale ...
Yingjun Wang +5 more
semanticscholar +1 more source