I believe this may be what you are looking for:

[url=http://femr2.ucoz.com]http://femr2.ucoz.com[/url]

Although not currently Java based, the full calculation base for the simulation is housed in an open Excel Spreadsheet, enabling all parameters and calculations to be modified and improved.

The visualisation engine simply displays data from the calculation base.

The focus of the study is to calculate the effect of a multitude of parameters upon the collapse time of a gravity only collapse.

[img]http://femr2.ucoz.com/_ph/1/512471395.jpg[/img]