SCIRun : Application to Atmospheric Dispersion Problems Using Unstructured Meshes

We present a n o verview of SCIRun, a scientiic problem solving environment that allows the interactive construction, debugging, and steering of large-scale scientiic computations. Using this \computational work-bench," a scientist can design and modify simulations interactively via a dataaow programming model. SCIRun enables scientists to design and modify model geometry, i n teractively change simulation parameters and boundary conditions, and interactively visualize geometric models and simulation results. We show a n i n tegrated prototype problem solving environment for computational uid dynamics may be constructed by combining SCIRun with the Tetrad/CSPRINT codes. The success of the approach is illustrated by using the resulting code to solve an atmospheric diiusion example consisting of time dependent p.d.e.s on unstructured tetrahedral spatial meshes.