success 22273 pencil-code 2008-10-07T14:39:44Z 2009-11-24T13:48:50Z The Pencil Code is primarily designed to deal with weakly compressible turbulent flows, which is why we use high-order first and second derivatives. To achieve good parallelization, we use explicit (as opposed to compact) finite differences. Typical scientific targets include driven MHD turbulence in a periodic box, convection in a slab with non-periodic upper and lower boundaries, a convective star embedded in a fully nonperiodic box, accretion disc turbulence in the shearing sheet approximation, self-gravity, non-local radiation transfer, dust particle evolution with feedback on the gas, etc. A range of artificial viscosity and diffusion schemes can be invoked to deal with supersonic flows. For direct simulations regular viscosity and diffusion is being used. The code is written in well-commented Fortran90. For a more detailed description and a full introduction see the manual.pdf file (see under links on the right). Remember to sign up for the Pencil Code User Meeting (see link on the right)! http://code.google.com/p/pencil-code pencil-code http://bits.ohloh.net/attachments/10192/pencils_64x64_med.png http://bits.ohloh.net/attachments/10192/pencils_64x64_small.png 7 5.0 2 770250 770250 22273 2009-11-24T13:48:49Z 2009-11-24T13:45:00Z 2001-11-01T00:00:00Z 2009-11-01T00:00:00Z 31 260594 40 Fortran (Fixed-format) gpl3_or_later GNU General Public License 3 or later