Arbitrary Water Pumpe
— interFoam, multiphase, cyclic fan boundary condition —
Simplifications to the numerical continuum are used in numerical investigations almost in every scenario. In most cases, particular regions are not of primary interest. An example is given in the following training case, in which a water pump (which is just generating a pressure drop) is removed and replaced by a 1D cyclic boundary condition. The simplification leads to less numerical cells and, therefore, a reduction of computational costs.
— OpenFOAM® offers a wide range of different boundary conditions —
The generation of cyclic boundary patches can be used for periodic analysis as well as for particular applications such as modeling a fan or pump. Here, a pressure drop is applied between the cyclic patches. Based on the pressure momentum coupling, the fluid will accelerate based on the set-up. The case has the standard bash script, which explains the single steps needed to build the cyclic patches as well as the set-up of the appropriate boundary condition. The case runs in two different modes. After meshing, the filling stage starts for a defined time. In manner two, the boundary conditions are changed, and the pressure drop is applied, resulting in pumping the fluid up
— Published under the GNU General Public License 3 —
gThe available training cases are tested and built for different OpenFOAM® versions. During the tests, only the OpenFOAM Foundation version of OpenFOAM® was used. Furthermore, the following software packages are required for most of the training cases: Salome®, ParaView®, and for optimization tasks one also needs DAKOTA®. The cases might work with the ESI version of OpenFOAM® too (not tested). Additionally, there is no support for Windows-based OpenFOAM® versions.