- 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
Product Features
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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.
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Zones in RWIND Simulation
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.
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Considering Rough Model Surfaces in RWIND Simulation
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.
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Second-Order Numerical Scheme in RWIND Simulation
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.
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Model Surface Layer Mesh in RWIND Simulation
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.
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Increased Calculation Performance by Reducing the Nodal Degrees of Freedom
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).
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Multilingual RWIND Simulation User Interface
The RWIND Simulation program for generating wind loads based on CFD can be utilized in different languages, e.g. in:
- German
- English
- Czech
- Spanish
- French
- Italian
- Polish
- Portuguese
- Russian
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Extended Display of Strains in RFEM
Display extended strains of members, surfaces and solids (e.g. important principal strains, equivalent total strains, etc.) 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.
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Create 3D glTF Models (*.glb and *.glTF Formats)
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.
You can integrate the 3D glTF models into your own websites using JavaScript according to these instructions (as on the Dlubal website Models to Download).
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Camera Fly Mode
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.
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Material Model Orthotropic Masonry 2D
The material model Orthotropic Masonry 2D is an elastoplastic model that additionally allows softening of the material, which can be different in the local x- and y-direction of a surface. The material model is suitable for (unreinforced) masonry walls with in-plane loads.
Contact us
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.
First steps
We provide information and tips to help you get started with the basic program RFEM and RSTAB.
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"I think the software is so powerful and capable that people will really value its power when they get properly introduced to it."
Dipl.-Ing. (FH) Maik Gehloff, MASc
9 August 2015
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"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."
Dr. F Davaee Markazi
23 May 2019
Customer Support 24/7
In addition to personal support, we offer resources 24/7 through our website.
