An Approach for Generating Meshes Similar to A Reference Mesh
نویسندگان
چکیده
This paper proposes an algorithm for generating a mesh that is similar to a given reference mesh in particular features. In the design process, similar kinds of meshes are generated for the same shape or similar shapes repeatedly. Once a mesh having the desired features is obtained, our algorithm can generate the succeeding meshes efficiently by imitating a selected set of features of the reference mesh. The algorithm (1) captures the significant features (element size, element orientation, and anisotropy) of the reference mesh in the form of a tensor field, (2) transforms the tensor field to modify the features, and (3) generates a refined mesh according to the modified tensor field. The results show that the generated mesh globally preserves specified features of the reference mesh. A mesh having the desired qualities will be easily obtained with just a few local mesh modifications.
منابع مشابه
A coarse-to-fine approach for efficient deformation of curved high-order meshes
We propose a coarse-to-fine approach for generating fine and curved highorder tetrahedral meshes. The proposed approach is performed in three steps: (1) generate a coarse reference mesh; (2) map this to a coarse and curved highorder mesh; and (3) refine the curved high-order mesh. The approach provides high-order meshes that are valid, have the desired interpolation degree, and can be computed ...
متن کاملSurface mesh enhancement with geometric singularities identification
A method for generating geometric surface meshes from a discrete surface, called a reference mesh, is presented. First, the geometrical singularities are extracted from the reference mesh. Then, an almost smooth surface interpolating the reference mesh vertices is associated to the reference mesh. Finally, the reference mesh is adaptively refined via the smooth geometry in order to obtain an ad...
متن کاملGeneration of Volume Meshes by Extrusion from Surface Meshes of Arbitrary Topology
An algorithm to generate volume meshes by extrusion from surface meshes of arbitrary topology is presented. The algorithm utilizes a three-step, advancing layer scheme to extrude a smooth volume mesh starting from an initial surface mesh. First, a locally orthogonal reference mesh is algebraically generated for the layer. The reference mesh is then smoothed using a locally three-dimensional Poi...
متن کاملIncompressible laminar flow computations by an upwind least-squares meshless method
In this paper, the laminar incompressible flow equations are solved by an upwind least-squares meshless method. Due to the difficulties in generating quality meshes, particularly in complex geometries, a meshless method is increasingly used as a new numerical tool. The meshless methods only use clouds of nodes to influence the domain of every node. Thus, they do not require the nodes to be conn...
متن کاملGeneration of Quad and Hex Dominant Semistructured Meshes Using an Advancing Layer Scheme
A novel algorithm to generate quadand hex-dominant, semistructured meshes is presented. The algorithm utilizes a three-step, advancing layer scheme to generate the mesh in structured layers starting from an initial data surface. First, a locally orthogonal reference mesh is algebraically generated. The reference mesh is then smoothed using a Poisson-type mesh generation equation. Finally, a lin...
متن کامل