- Calculation of transient incompressible turbulent wind flow with the BlueDyMSolver solver
- LES SpalartAllmarasDDES turbulence model
- Consideration of stationary solution as initial state for transient calculation
- Automatic determination of analysis period and time steps
- Use of intermediate results during the calculation
- Organized display of time-varying results via time step units
- Diagram of drag force and point probe results over analysis time
- Display of line probe results for any time steps in a diagram
- Freely Adjustable Wind Permeability for Surfaces
RWIND 2 | Features of RWIND Pro
![KB 001870 | Static Analysis with Wind Loads from Experimentally Measured Pressures Using RWIND 2 and RFEM 6](/en/webimage/046682/3668998/01-en.png?mw=512&hash=65e98cfe859ce35a3e3e9da47a0ef9335401520e)
![KB 001871 | Interpolation Methods for Experimentally Measured Pressures in RWIND 2](/en/webimage/046719/3671135/05-en.png?mw=512&hash=b8c85e6996e48fffa186f5f01385ba17a2ac1f36)
![Figure 1: Validation Example Model](/en/webimage/046033/3651680/006.jpg?mw=512&hash=024c9db11178358cdab5075631e47165e2e4f513)
![Figure 1: The Effect of the Wind Direction](/en/webimage/044683/3627810/005.jpg?mw=512&hash=030e1c50257d7fa96f0e7ffc96c49be2668cfd9f)
![Feature 002746 | Application of Wind Loads from Experimentally Determined Pressure Values](/en/webimage/047175/3688544/47175.png?mw=512&hash=92558eee30ca35a36317ae0c81415eb079ba4e72)
If you have experimentally determined surface pressures available for a model, you can apply them to a structural model in RFEM 6, process them in RWIND 2, and use them as wind loads in the structural analysis of RFEM 6.
You can find out how to apply the experimentally determined values in this Knowledge Base Article .
![Feature 002649 | Displaying RWIND Results Directly in RFEM 6](/en/webimage/043004/3572831/2023-08-15-07-12-55.png?mw=512&hash=0b716b063ad4126a4590e42d13a7a1974c015cac)
You can display the RWIND results directly in the main program. In the Navigator - Results, select the Wind Simulation Analysis result type from the list above.
Currently, the following results are available, which refer to the RWIND computational mesh:
- Surface pressure
- Surface cp coefficient
- Wall distance y+ (steady flow)
![Feature 002551 | Freely Adjustable Wind Permeability for Surfaces](/en/webimage/035403/3435909/35403_EN.png?mw=512&hash=e357887a3f1c878d13b4cfc9eb821533b9c3bc05)
Use RWIND 2 Pro to easily apply a permeability to a surface. All you need is the definition of
- the Darcy coefficient D,
- the inertial coefficient I, and
- the length of the porous medium in the direction of flow L,
to define a pressure boundary condition between the front and back of a porous zone. Due to this setting, you obtain the flow through this zone with a two-part result display on both sides of the zone area.
But that's not all. Furthermore, the generation of a simplified model recognizes permeable zones and takes into account the corresponding openings in the model coating. Can you waive an elaborate geometric modeling of the porous element? Understandable – we have good news for you then! With a pure definition of the permeability parameters, you can avoid complex geometric modeling of the porous element. Use this feature to simulate permeable scaffolding, dust curtains, mesh structures, and so on.
More Information![Feature 002554 | Editor for Mesh Refinement Control](/en/webimage/035416/3483380/002554_EN.png?mw=512&hash=3b9d8ef5ff241afc80ae46813d9766fd0c8a8ffe)
Do you already know the editor for mesh refinement control? It is a great help for your work! Why? It's easy – it gives you the following options:
- Graphic visualization of the areas with mesh refinements
- Mesh refinement of zones
- Deactivating the standard 3D solid mesh refinement with transversion into the corresponding manual 3D mesh refinements.
These options help you to formulate a suitable rule for meshing the entire model, even for the models with unusual dimensions. Use the editor to efficiently define small model details on large buildings or detailed meshing areas in the coating area of the model. You will be amazed!