Adaptive mesh generation preserving the quality of the initial grid

Author

Ciampolini, Paolo ; Forghieri, Alessandro ; Pierantoni, Anna ; Gnudi, Antonio ; Rudan, Massimo V. ; Baccarani, Giorgio

Author_Institution

Dept. of Electron., Bologna Univ., Italy

Volume

8

Issue

5

fYear

1989

fDate

5/1/1989 12:00:00 AM

Firstpage

490

Lastpage

500

Abstract

An algorithm allowing the automatic generation of a mesh and accounting for the main physical features of the problem is presented. The adaptivity is provided by a refinement strategy which preserves the characteristics of the initial grid, inserting nodes only in the regions where the solution deviates from a linear behavior. A geometrical interpretation in terms of a monitor surface is given, and various different approaches to the problem are discussed. The efficiency of the algorithm is enhanced by a local solution scheme, which uses previously computed values of all the unknown quantities as boundary conditions for the newly generated nodes. A few examples illustrate the performance of the algorithm

Keywords

finite element analysis; semiconductor device models; adaptive generation of mesh; boundary conditions; examples; geometrical interpretation; inserting nodes; local solution scheme; monitor surface; performance; preserving quality of initial grid; previously computed values; refinement strategy; Boundary conditions; Councils; Electric potential; Mesh generation; Microelectronics; Monitoring; Software algorithms; Software design; Software tools; Temperature;

fLanguage

English

Journal_Title

Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on

Publisher

ieee

ISSN

0278-0070

Type

jour

DOI

10.1109/43.24877

Filename

24877