Hybrid Grid Generation Using NW Grid
Abstract
We describe the development and use of a hybrid n-dimensional grid generation system called NWGRID. The Applied Mathematics Group at Pacific Northwest National Laboratory (PNNL) is developing this tool to support the Laboratory's computational science efforts in chemistry, biology, engineering and environmental (subsurface and atmospheric) modeling. NWGRID is the grid generation system, which is designed for multi-scale, multi-material, multi-physics, time-dependent, 3-D, hybrid grids that are either statically adapted or evolved in time. NWGRID'S capabilities include static and dynamic grids, hybrid grids, managing colliding surfaces, and grid optimization[using reconnections, smoothing, and adaptive mesh refinement (AMR) algorithms]. NWGRID'S data structure can manage an arbitrary number of grid objects, each with an arbitrary number of grid attributes. NWGRID uses surface geometry to build volumes by using combinations of Boolean operators and order relations. Point distributions can be input, generated using either ray shooting techniques or defined point-by-point. Connectivity matrices are then generated automatically for all variations of hybrid grids.
- Authors:
- Publication Date:
- Research Org.:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 15007440
- Report Number(s):
- PNNL-SA-33374
- DOE Contract Number:
- AC06-76RL01830
- Resource Type:
- Conference
- Resource Relation:
- Conference: NUMERICAL GRID GENERATION IN COMPUTATIONAL FIELD SIMULATIONS, 7th, 479-486; International Society of Grid Generation,Mississippi State,,United States.
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
Citation Formats
Jones-Oliveira, Janet B, Oliveira, Joseph S, Trease, Lynn L, Trease, Harold E, and B.K. Soni, J. Hauser, J.F. Thompson, P.R. Eiseman. Hybrid Grid Generation Using NW Grid. United States: N. p., 2000.
Web.
Jones-Oliveira, Janet B, Oliveira, Joseph S, Trease, Lynn L, Trease, Harold E, & B.K. Soni, J. Hauser, J.F. Thompson, P.R. Eiseman. Hybrid Grid Generation Using NW Grid. United States.
Jones-Oliveira, Janet B, Oliveira, Joseph S, Trease, Lynn L, Trease, Harold E, and B.K. Soni, J. Hauser, J.F. Thompson, P.R. Eiseman. 2000.
"Hybrid Grid Generation Using NW Grid". United States.
@article{osti_15007440,
title = {Hybrid Grid Generation Using NW Grid},
author = {Jones-Oliveira, Janet B and Oliveira, Joseph S and Trease, Lynn L and Trease, Harold E and B.K. Soni, J. Hauser, J.F. Thompson, P.R. Eiseman},
abstractNote = {We describe the development and use of a hybrid n-dimensional grid generation system called NWGRID. The Applied Mathematics Group at Pacific Northwest National Laboratory (PNNL) is developing this tool to support the Laboratory's computational science efforts in chemistry, biology, engineering and environmental (subsurface and atmospheric) modeling. NWGRID is the grid generation system, which is designed for multi-scale, multi-material, multi-physics, time-dependent, 3-D, hybrid grids that are either statically adapted or evolved in time. NWGRID'S capabilities include static and dynamic grids, hybrid grids, managing colliding surfaces, and grid optimization[using reconnections, smoothing, and adaptive mesh refinement (AMR) algorithms]. NWGRID'S data structure can manage an arbitrary number of grid objects, each with an arbitrary number of grid attributes. NWGRID uses surface geometry to build volumes by using combinations of Boolean operators and order relations. Point distributions can be input, generated using either ray shooting techniques or defined point-by-point. Connectivity matrices are then generated automatically for all variations of hybrid grids.},
doi = {},
url = {https://www.osti.gov/biblio/15007440},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Sep 01 00:00:00 EDT 2000},
month = {Fri Sep 01 00:00:00 EDT 2000}
}