Frequently Asked Questions (FAQ)

Search FAQ




Customer Support 24/7

Knowledge Base

In addition to our technical support (e.g. via chat), you’ll find resources on our website that may help you with your design using Dlubal Software.

Newsletter

Receive information including news, useful tips, scheduled events, special offers, and vouchers on a regular basis.

  • Answer

    For the calculation, the program creates a solid mesh between the model and the outer sides of the wind tunnel. In this case, the solid mesh does not connect directly to the model geometry, but to a separate model wrapping mesh placed around the model geometry. This model wrapping mesh has a certain distance to the exact model geometry, depending on the model mesh setting (Simplified Model - Shrink-Wrapping-Mesh). Similar to the surrounding model wrapping mesh, the exact model geometry itself is also represented from a wrapping mesh, but on the exact model shape.

    Figure 01 - Mesh Types

    With the OpenFOAM calculation, a print result is obtained on each solid element. These values are extrapolated to the respective edge nodes at the transition to the model. To determine the final surface pressures on the model geometry, the pressures at the edge nodes of the solid mesh are transformed into the exact model mesh wrapping in a further step. In the event that the triangular meshing of the exact model mesh geometry is too rough, the last transformation process initiates a partial refinement of the exact model mesh wrapping.

    Figure 02 - Difference Between Wrapping Mesh Geometry and Exact Model Geometry

Contact us

Contact Dlubal Software

Did you find your question?
If not, contact us via our free e-mail, chat, or forum support, or send us your question via the online form.

(267) 702-2815

info-us@dlubal.com

First Steps

First steps

We provide hints and tips to help you get started with the main programs RFEM and RSTAB.

Wind Simulation & Wind Load Generation

With the stand-alone program RWIND Simulation, wind flows around simple or complex structures can be simulated by means of a digital wind tunnel.

The generated wind loads acting on these objects can be imported to RFEM or RSTAB.

Your support is by far the best

“Thank you for the valuable information.

I would like to pay a compliment to your support team. I am always impressed how quickly and professionally the questions are answered. I have used a lot of software with a support contract in the field of structural analysis, but your support is by far the best. ”