SCIRun SCIRun is a Problem Solving Environment (PSE), for modeling, simulation and visualization of scientific problems.
SCIRun/Fusion
Fusion Fusion is an extension package for SCIRun which expands it's capabilities for modeling fusion plasma field problems. FusionViewer is included with Fusion.
VisIt
VisIt VisIt is a free interactive parallel visualization and graphical analysis tool for viewing scientific data on Unix and PC platforms.
VisTrails
VisTrails VisTrails is a new scientific workflow management system developed at the University of Utah that provides support for data exploration and visualization.