Vertical Axial Wind Turbine
— pimpleFoam, flow induced rotation, six-degree-of-freedom —
For different engineering applications, flow induced rotation scenarios are the main focus. For example one can investigate into wind-turbines and its blade geometry. Commonly, people fix the rotations-per-minute (rpm) of the rotor during the simulation to get a better understanding of the ongoing physics. This is common practice and state of the art. However, it is also possible to allow the fluid to do the work and rotate the rotor based on the pressure acting on the blades, including inertia effects and so on. This case demonstrates a 2D case of such a set-up using the six-degree-of-freedom library in the vertical axial wind turbine (VAWT) scenario.
— Flow induced rotation using the Six-Degree-of-Freedom library —
The case demonstrates how to set-up the numerical mesh for the static and moving part using the Arbitrary-Mesh-Interface (AMI) boundary condition. Additionally, the pre-defined set-up of the dynamicMeshDict for the six-degree-of-freedom library is presented with a lot of comments that allows one to understand the physical and numerical parameter much better.
— 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.