During export, the exact geometry, cross‑section information, member type, and release data are transferred. In the ISM viewer, you can view a rendered 3D model. Moreover, you can call up detailed information about every element.
During export, the exact geometry, cross‑section information, member type, and release data are transferred. In the ISM viewer, you can view a rendered 3D model. Moreover, you can call up detailed information about every element.
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.
Always keep an eye on your results. In addition to the resulting load cases in RFEM or RSTAB (see below), the results from the aerodynamics analysis in RWIND 2 represent the flow problem as a whole:
These results are displayed in the RWIND 2 environment and evaluated graphically. The flow results around the structure geometry in the overall display are rather confusing, but the program has a solution for this. In order to present clearly arranged results, freely movable section planes are displayed for the separate display of the 'solid results' in a plane. Accordingly, for the 3D branched streamline result, the program presents you an animated display in the form of moving lines or particles in addition to the static one. This option helps to represent the wind flow as a dynamic effect.
You can export all results as a picture or, especially for the animated results, as a video.