Mapping method for generating three-dimensional meshes: past and present

Conference · Fri Jan 01 04:00:00 EST 1982

OSTI ID:5255207

Cook, W A; Oakes, W R

Two transformations are derived in this paper. One is a mapping of a unit square onto a surve and the other is a mapping of a unit cube onto a three-dimensional region. Two meshing computer programs are then discussed that use these mappings. The first is INGEN, which has been used to calculate three-dimensional meshes for approximately 15 years. This meshing program uses an index scheme to number boundaries, surfaces, and regions. With such an index scheme, it is possible to control nodal points, elements, and boundary conditions. The second is ESCHER, a meshing program now being developed. Two primary considerations governing development of ESCHER are that meshes graded using quadrilaterals are required and that edge-line geometry defined by Computer-Aided Design/Computer-Aided Manufacturing (CAD/CAM) systems will be a major source of geometry definition. This program separates the processes of nodal-point connectivity generation, computation of nodal-point mapping space coordinates, and mapping of nodal points into model space.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5255207
• Report Number(s): LA-UR-82-1000; CONF-820815-1; ON: DE82014077
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS
990200* -- Mathematics & Computers
COMPUTER CALCULATIONS
COMPUTER CODES
COMPUTER-AIDED DESIGN
E CODES
MAPPING
MESH GENERATION
PROGRAMMING
THREE-DIMENSIONAL CALCULATIONS