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Overture: An Object-Oriented Framework for Overlapping Grid Applications

Conference ·
 [1]
  1. LLNL
+ Show Author Affiliations

The Overture framework is an object-oriented environment for solving partial differential equations on over-lapping grids. We describe some of the tools in Overture that can be used to generate grids and solve partial differential equations (PDEs). Overture contains a collection of C++ classes that can be used to write PDE solvers either at a high level or at a lower level for efficiency. There are also a number of tools provided with Overture that can be used with no programming effort. These tools include capabilities to: repair computer-aided-design (CAD) geometries and build global surface triangulations; generate surface and volume grids with hyperbolic grid generation; generate composite overlapping grids; generate hybrid (unstructured) grids; and solve particular PDEs such as the incompressible and compressible Navier-Stokes equations.

Research Organization:
Lawrence Livermore National Lab., CA (US)
Sponsoring Organization:
US Department of Energy (US)
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
802822
Report Number(s):
UCRL-JC-147889
Country of Publication:
United States
Language:
English

References (9)

A Fourth-Order Accurate Method for the Incompressible Navier-Stokes Equations on Overlapping Grids journal July 1994
Composite overlapping meshes for the solution of partial differential equations journal September 1990
Enhancements of a three-dimensional hyperbolic grid generation scheme journal October 1992
Numerical simulation of the integrated space shuttle vehicle in ascent conference February 2013
An Algorithm for Assembling Overlapping Grid Systems journal January 1999
A new method for establishing intergrid communication among systems of overset grids conference August 1991
Hole-Cutting for Three-Dimensional Overlapping Grids journal January 1999
Computational Approach for Probing the Flow Through Artificial Heart Devices journal November 1997
An unsplit Godunov method for systems of conservation laws on curvilinear overlapping grids journal November 1994

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Related Subjects

99 GENERAL AND MISCELLANEOUS
EFFICIENCY
NAVIER-STOKES EQUATIONS
PARTIAL DIFFERENTIAL EQUATIONS
PROGRAMMING
REPAIR