For solid modelling maybe this link help you http://www.opencascade.org/occ/areas/ LGPL like licence , Debian suported.
For math modelling http://www.opencfd.co.uk/openfoam/ http://en.opensuse.org/Wishlist_Science --To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]