Project Title:

Interactive and Adaptive Grid Quality Assessment

06.01-1732
901944
Interactive and Adaptive Grid Quality Assessment

Abstract:

Numerical grid generation represents the critical link that connects numerical partial
differential equation solvers with real world computational simulations. For aerospace
applications, the consideration is for vehicles with complex geometric configurations
and solution behavior. Block-structured grids have been recognized as an effective
tool for such considerations. However, little has been done to assess the quality
of the generated grids. In this project, the feasibility of effective grid quality
assessment will be established through the creation of measurement techniques and
a prototype code. The prototype code would be a deliverable item and would provide
the foundation upon which a number of grid diagnostic tools would arise from subsequent
Phase II efforts. The prototype code would present interactive graphical displays
of grid quality objects simultaneously with the grid and the control net through
which local grid manipulations would transpire. With the manipulations available
for local corrective actions in response to quality indicators, the user would be
able to perform interactively adaptive grid cycles; in effect, this would represent
a form of interactive CFD. The execution of these latter actions would require a
rapid networking between the supercomputer and the workstation. Altogether, the grid
diagnostic capability would lead to improved numerical simulations.
Software tools offering grid diagnostic capability and enhanced adaptive strategies
will help engineers and scientists to analyze increasingly complex designs of present
and future aerospace systems with improved reliability and efficiency.
interactive, adaptive, grid, quality, measures, fluids, networking, computers