Chimera Grid Tools
In: NASA Tech Briefs, December 2005, 2005-12-01
Online
report
Chimera Grid Tools (CGT) is a software package for performing computational fluid dynamics (CFD) analysis utilizing the Chimera-overset-grid method. For modeling flows with viscosity about geometrically complex bodies in relative motion, the Chimera-overset-grid method is among the most computationally cost-effective methods for obtaining accurate aerodynamic results. CGT contains a large collection of tools for generating overset grids, preparing inputs for computer programs that solve equations of flow on the grids, and post-processing of flow-solution data. The tools in CGT include grid editing tools, surface-grid-generation tools, volume-grid-generation tools, utility scripts, configuration scripts, and tools for post-processing (including generation of animated images of flows and calculating forces and moments exerted on affected bodies). One of the tools, denoted OVERGRID, is a graphical user interface (GUI) that serves to visualize the grids and flow solutions and provides central access to many other tools. The GUI facilitates the generation of grids for a new flow-field configuration. Scripts that follow the grid generation process can then be constructed to mostly automate grid generation for similar configurations. CGT is designed for use in conjunction with a computer-aided-design program that provides the geometry description of the bodies, and a flow-solver program.
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Chimera Grid Tools
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Autor/in / Beteiligte Person: | Chan, William M ; Rogers, Stuart E ; Nash, Steven M ; Buning, Pieter G ; Meakin, Robert |
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Zeitschrift: | NASA Tech Briefs, December 2005, 2005-12-01 |
Veröffentlichung: | United States: NASA Center for Aerospace Information (CASI), 2005 |
Medientyp: | report |
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