Simultaneous untangling and smoothing of hexahedral meshnes
Visualitza/Obre
Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2099.1/12363
Tipus de documentProjecte Final de Màster Oficial
Data2010-02-05
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
:
Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
Currently, there is not a general method such that any given geometry can generate
a mesh with elements of hexahedral type. However, there are several methods used to create the numerical discretization for certain types of geometries. Unfortunately,
these methods could generate meshes with highly distorted elements and in some cases
the mesh obtained may include tangled elements. Therefore, it is of most importance
to develop a procedure that could smooth and untangle hexahedral meshes.
This work will provide a method that improves the quality of unstructured meshes
and, if required, untangle the inverted elements by the minimization of a smoothed
objective function. This objective function is based on the shape quality index of the
elements or in the conditioning number of the shape matrix. To illustrate the applica-
tion of the proposed smoother, several example of tangled meshes are presented, show-ing how the smoother untangles and smoothes quadrilateral and hexahedral meshes.
A comparison of the performance between several minimization methods is presented.
Finally, the robustness of smoother is compared to one of the most used smoothing
methods.
Col·leccions
Fitxers | Descripció | Mida | Format | Visualitza |
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thesis-cesar-rivas.pdf | Tesis Completa | 834,9Kb | Visualitza/Obre |