- Over 86,000 users in 95 countries
- One software package for all application areas
- Free support by experienced engineers
- Short learning time and intuitive / self-explanatory software
- Excellent price-performance ratio
- Flexible modular concept that can be extended as required
- Scalable license system with single-user and network licenses
- Respected and proven software in many well-known projects
Why Dlubal Software?
Wind Simulation & Wind Load Generation
With the stand -alone program RWIND Simulation, you can simulate wind flows around simple or complex structures by means of a digital wind tunnel.
The generated wind loads acting on these objects can be imported to RFEM or RSTAB.
It is possible to assign different colors to various objects of a structure in order to make the rendering display of the structure more clearly arranged.
A distinction is made between the various object properties of nodes, lines, members, member sets, surfaces, and solids. In addition, the model can be displayed in photorealistic rendering.
In RWIND Simulation, it is possible to divide the model in different zones. On the one hand, different surface roughness can be assigned to the zones. On the other hand, it is possible to evaluate local results better.
The RWIND Simulation program for generating wind loads based on CFD can be utilized in different languages, e.g. in:
Utilize the RWIND Simulation program to consider a surface roughness of the model surface by applying a modified wall boundary condition. The numerical model is based on the assumption that grains with a certain diameter are arranged homogeneously on the model surface, similar to a sandpaper. The grain diameter is described with the parameter Ks and the distribution with the parameter Cs. By considering the wall roughness, the numerical flow simulation can capture reality more closely.
The volume space in RWIND Simulation can optionally be discretized with the second-order theory between the cells.
This extended approach usually results in more accurate results despite poorer convergence behavior.
The meshing algorithm of RWIND Simulation uses the boundary layer option to mesh the area near the model surface with a voluminous layer mesh. The number of layers is controlled by a user-defined parameter.
This fine mesh in the area of the model surface helps to represent the wind velocity close to the surface.
The number of degrees of freedom in a node is no longer a global calculation parameter in RFEM (6 degrees of freedom for each mesh node in 3D models, 7 degrees of freedom for the warping torsion analysis). Thus, each node is generally considered with a different number of degrees of freedom, which leads to a variable number of equations in the calculation.
This modification speeds up the calculation, especially for models where a significant reduction of the system could be achieved (e.g. trusses and membrane structures).
Display extended strains of members, surfaces and solids (for example, the important principal strains, equivalent total strains, and so on) in the Project Navigator - Results in RFEM as well as in Table 4.0.
For example, you can display governing plastic strains when performing the plastic design of connections with surface elements.
RFEM and RSTAB models can be saved as 3D glTF models (*.glb and *.glTF formats). View the models in 3D in detail with a 3D viewer from Google or Baylon. Take your VR glasses, such as Oculus, to "walk" through the structure.
With the view option Camera Fly Mode, you can fly through your RFEM and RSTAB structure. Control the direction and speed of the flight with your keyboard. Additionally, you can save the flight through your structure as a video.
Do you have questions or need advice?
Contact our free e-mail, chat, or forum support or find various suggested solutions and useful tips on our FAQ page.
"The software is so powerful and capable. People will really value this when they are properly introduced to it."
"I have been using Dlubal for over a year now and am constantly impressed by the range of its capabilities/flexibilities that Dlubal offers, in particular its ability to cope with the unusual design challenges and requirements typical of what I do in my daily job."