FAQ 004745 | How can I model any cross-section as a floor beam in RFEM?

It is possible to edit a reinforcement layout or an existing reinforcement directly in the reinforcement's 3D rendering.

In RFEM 5 as well as RSTAB 8 in RF-/FOUNDATION Pro, you can save the foundation dimensions for all five foundation types as foundation templates in a user-defined database and use them later in other models.

In RF-/FOUNDATION Pro, the foundation design requires the definition of the corresponding loading (load cases, load combinations, or result combinations) for different design situations (STR, GEO, UPL, or EQU).

• 3D incompressible wind flow analysis with OpenFOAM^® software package
• Direct model import from RFEM or RSTAB including neighboring and terrain models (3DS, IFC, STEP files)
• Model design via STL or VTP files independent of RFEM or RSTAB
• Simple model changes using Drag and Drop and graphical adjustment assistance
• Automatic corrections of the model topology with shrink wrap networks
• Option to add objects from the environment (buildings, terrain ...)
• Wind load determined over the height of the building, depending on standard-specific parameters (velocity, turbulence intensity)
• K-epsilon and K-omega turbulence models
• Automatic mesh generation adjusted to the selected depth of detail
• Parallel calculation with optimal utilization of the capacity of multicore computers
• Results in just minutes for low-resolution simulations (up to 1 million cells)
• Results within a few hours for simulations with medium/high resolution (1‑10 million cells)
• Graphical display of results on the Clipper/Slicer planes (scalar and vector fields)
• Graphical display of streamlines
• Streamline animation (optional video creation)
• Definition of point and line probes
• Display of aerodynamic pressure coefficients
• Graphical display of turbulence properties in the wind field
• Optional meshing using the boundary layer option for the area near the model surface
• Consideration of rough model surfaces possible
• Optional use of a seond-order numerical Order
• Multilingual user interface (for example, German, English, Spanish, French)
• Documentation possible in the RFEM and RSTAB printout report

Rely on the Dlubal programs even in windy matters. RFEM and RSTAB provide a special interface for exporting models (that is, structures defined by members and surfaces) to RWIND 2. There, the wind directions to be analyzed for your project are defined by means of related angular positions about the vertical model axis. Furthermore, the elevation-dependent wind profile and turbulence intensity profile are defined on the basis of a wind standard. These specifications result in specific load cases, depending on the angle. For this, the fluid parameters, turbulence model properties, and iteration parameters that are all stored globally are helpful. You can extend these load cases by partial editing in the RWIND 2 environment using terrain or environment models from STL vector graphics.

As an alternative, you can also run RWIND 2 manually and without the interface application in RFEM or RSTAB. In this case, the structures and terrain environment in the program are directly modeled by imported STL and VTP files. You can define the height-dependent wind load and other fluid-mechanical data directly in RWIND 2.

Due to its versatile applicability, RWIND 2 is always at your side to support you in your individual projects.

Work on your models with efficient and precise calculations in the digital wind tunnel. RWIND 2 uses a numerical CFD model (Computational Fluid Dynamics) to simulate wind flows around objects. Specific wind loads are generated from the simulation process for RFEM or RSTAB.

RWIND 2 performs this simulation using a 3D volume mesh. The program provides automatic meshing; you can easily set the entire mesh density as well as the local mesh refinement on the model using a few parameters. A numerical solver for incompressible turbulent flows is used to calculate the wind flows and the surface pressures on the model. The results are then extrapolated to your model. RWIND 2 is designed to work with different numerical solvers.

We currently recommend using the OpenFOAM^® software package, which has provided very good results in our tests and is also a frequently used tool for CFD simulations. Alternative numerical solvers are under development.