Generating Hexahedral Mesh for Wire-wrapped Fuel Assembly With RBF Mesh Deformation Method

“all-hexahedral Element Meshing by Generating the Dual Mesh”

The 3D meshing process begins with the definition of the outer geometry. With a CAD system and a 2d quadrilateral mesh generator, a closed all-quadrilateral mesh is obtained, which is the start point for the process that this communication describes. Once imposed the outer quadrilateral mesh, the connectivity between the inner elements becomes strongly conditioned. Following the guidelines of t...

Surface Mesh Projection for Hexahedral Mesh Generation by Sweeping

Sweep method is one of the most robust techniques to generate hexahedral meshes in extrusion volumes. One of the main issues to be dealt by any sweep algorithm is the projection of a source surface mesh onto the target surface. This paper presents a new algorithm to map a given mesh over the source surface onto the target surface. This projection is carried out by means of a least-squares appro...

Efficient and exact mesh deformation using multiscale RBF interpolation

Sheet-Based Hexahedral Mesh Generation

Historically, hexahedral finite element mesh generation has required significant geometric decomposition with the resulting consequence that generating hexahedral meshes can be extremely difficult to perform and automate and the process often takes several orders of magnitude longer in time to complete than current methods for generating tetrahedral meshes. In this work, we present methods for ...

Effective adaptation technique for hexahedral mesh

This paper describes easy and effective adaptive technique for Finite Element Method. Utilize Hex-R which refine an existing mesh. Refined mesh keeps original coarse mesh topologically. Finally capability of adaptive method using Hex-R is mentioned. Introduction Adaptive technique is one of the most important issues in order to realize effective FEM analysis process. Many works for adaptive mes...