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Dlubal Software programs and add-on modules include a wide range of powerful features.

Since our software is subject to continuous development, we are constantly adding new features. In doing so, we also take account of our customers' wishes.

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Wind Simulation & Wind Load Generation

RWIND Simulation Manuals

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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  • Wall Roughness Definition in RWIND Simulation

    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.

  • Second-Order Numerical Scheme in RWIND Simulation

    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.

  • Model Surface Layer Mesh in RWIND Simulation

    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.

  • 9 Languages Available in RWIND Simulation

    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
  • Improved Calculation Performance by Optimized Consideration of the Nodal Degrees of Freedom in RFEM

    Increased Calculation Performance by Reducing the Nodal Degrees of Freedom

    New

    001416

    RFEM

    Calculation

    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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Contact our free e-mail, chat, or forum support or find various suggested solutions and useful tips on our FAQ page.

+49 9673 9203 0

info@dlubal.com

First steps

First steps

We provide information and tips to help you get started with the basic program RFEM and RSTAB.

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