Committee Chair

Karman Jr., Steve

Committee Member

Swafford, Tim; Anderson, Kyle

Department

Dept. of Computational Engineering

College

College of Engineering and Computer Science

Publisher

University of Tennessee at Chattanooga

Place of Publication

Chattanooga (Tenn.)

Abstract

The central tool of this work is a correspondence distance field to discrete surface points embedded within a quadtree data structure. The theory, development, and implementation of the distance field tool are described, and two main applications to two-dimensional mesh generation are presented with extension to three-dimensional capabilities in mind. First is a method for surface-oriented mesh generation from a sufficiently dense set of discrete surface points without connectivity information. Contour levels of distance from the body are specified and correspondences oriented normally to the contours are created. Regions of merging fronts inside and between objects are detected in the correspondence distance field and incorporated automatically. Second, the boundaries in a Voronoi diagram between specified coordinates are detected adaptively and used to make Delaunay tessellation. Tessellation of regions with holes is performed using ghost nodes. Images of meshed for each method are given for a sample set of test cases. Possible extensions, future work, and CFD applications are also discussed.

Degree

M. S.; A thesis submitted to the faculty of the University of Tennessee at Chattanooga in partial fulfillment of the requirements of the degree of Master of Science.

Date

8-2012

Subject

Computational fluid dynamics; Numerical grid generation (Numerical analysis)

Keyword

Corresondence distance fields; Mesh generation

Discipline

Computational Engineering

Document Type

Masters theses

DCMI Type

Text

Extent

xiv, 112 leaves

Language

English

Rights

https://rightsstatements.org/page/InC/1.0/?language=en

License

http://creativecommons.org/licenses/by-nc-nd/3.0/

Download

Share

COinS