In the computational fluid dynamic analysis, engineers are using a fixed rotation set-up for the moving mesh that includes the design of the turbine. However, if one is interested in a flow-induced rotation, the six degrees of freedom library in OpenFOAM can be used to handle such analysis. Discount of 25% possible.
The descritization of the continous fluid is the essential task in the field of computational fluid dynamics and numerical analysis. Due to the stiff learning curve of OpenFOAM, especially at the beginning, even simple geometry meshing procedures are hard to achieve. Therefore, the following training case provides information for the first steps with snappyHexMesh.
Cell Zone Generation within SnappyHexMesh
Particular regions in a mesh could require unique properties such as the modeling of porosities or source terms. Therefore, cellZones has to be used in OpenFOAM®. SnappyHexMesh can be one way to define such zones during the meshing stage directly. Based on the snappyHexMeshDict set-up, different quality levels can be achieved. Especially the influence of the »featureEdge« feature is demonstrated in the training case.
Meshing a Helix
The in-house mesher of OpenFOAM® named snappyHexMesh is infamous in the community due to meshing problems in more advanced and complex geometries. This might be true if you are not using snappyHexMesh correctly. This training case shows the basic meshing settings for the helix geometry. Additionally, a way of the layer generation is shown which will end up with a coverage above 95 percent.
The Magnus Effect
The investigation into different phenomena can be done easily with numerical analysis. Some of the most famous phenomena are already simulated by Holzmann CFD such as the Magnus Effect, the Taylor-Rayleigh instability or the Kelvin-Helmholtz instability. People who love soccer should be aware of the Magnus effect, as it is a very common phenomenon in this kind of sport. However, it is also necessary for golf, tennis, table-tennis and so on.
Arbitrary Coupled Mesh Interface
In engineering applications, it is common to have active parts which connect and disconnect. Using the arbitrary coupled mesh interface in OpenFOAM® allows one to use dynamic elements that connect and disconnect during the time. The usage of such boundary conditions and the correct set-up is the principal focus of this training case. Discount of 25 % possible.
Gin Tonic (Conjugated Heat Transfer)
Heat transfer problems, including several different regions, are state of the art simulations for CFD engineers. In each engineering application, heat transfer processes occur. Depending on the investigation, the energy transport can be one of the critical quantities such as thermal stress, temperature resistance and so on. The training case provides the correct set-up for such kind of problems and will guide the trainee through the different steps. Discount of 25 % possible.