Open Source Codes for CFD

Dolfyn

Dolfyn is based on the ideas, algorithms, and procedures presented in the book by J.H. Ferziger & M. Peric “Computational Methods for Fluid Dynamics” (Springer), which acts as Theoretical Manual. The latest development version was published in December 2007.

FeatFlow

Featflow is a software package for incompressible flow in 2D and 3D, which is designed for education, scientific research and industrial applications. Featflow is written by Fortran 77, about 6.1 MB. Current version is 1.3RC10.

ISAAC

ISAAC (Integrated Solution Algorithm for Arbitrary Configurations) is a compressible Euler/Navier-Stokes computational fluid dynamics code. ISAAC includes the capability of calculating the Euler equations for inviscid flow or the Navier-Stokes equations for viscous flows. ISAAC uses a domain decomposition structure to accomodate complex physical configurations. ISAAC can calculate either steady-state or time dependent flow. ISAAC seems no renews,  since latest version 4.2 was published in 2001.

Gerris Flow Solver

Gerris is a Free Software program for the solution of the partial differential equations describing fluid flow, which is supported by NIWA (National Institute of Water and Atmospheric research). Gerris has been updated in 2008.

OpenFOAM

The OpenFOAM® (Open Field Operation and Manipulation) CFD Toolbox can simulate anything from complex fluid flows involving chemical reactions, turbulence and heat transfer, to solid dynamics, electromagnetics and the pricing of financial options. OpenFOAM is produced by OpenCFD Ltd and is freely available and open source, licensed under the GNU General Public Licence.

The core technology of OpenFOAM is a flexible set of efficient C++ modules. These are used to build a wealth of: solvers, to simulate specific problems in engineering mechanics; utilities, to perform pre- and post-processing tasks ranging from simple data manipulations to visualisation and mesh processing; libraries, to create toolboxes that are accessible to the solvers/utilities, such as libraries of physical models.

OpenFOAM uses finite volume numerics to solve systems of partial differential equations ascribed on any 3D unstructured mesh of polyhedral cells. The fluid flow solvers are developed within a robust, implicit, pressure-velocity, iterative solution framework, although alternative techniques are applied to other continuum mechanics solvers. Domain decomposition parallelism is fundamental to the design of OpenFOAM and integrated at a low level so that solvers can generally be developed without the need for any ’parallel-specific’ coding.

DUNS

The DUNS (Diagonalized Upwind Navier-Stokes)code is a 2D/3D, structured, multi-block, multi-species,reacting, steady/unsteady, Navier Stokes fluid dynamics code with q-omega turbulence model. It currently uses a diagonalized ADI procedure with upwind difference. The latest version was released in 2003.

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