能进行多种加密，提供源码与与文档，供交流！ -A variety of encryption source code and documentation, for the exchange!

单相流体，在迭代的步骤里加入了源项，这样，加速度得以显现。适合周期性边界条件(This program is free software; you can redistribute it and/or * * modify it under the terms of the GNU General Public License as * * published by the Free Software Foundation; either version 2 of