Rigid Turbine - NREL5MW

[teocar]

Hello,
I would like to use the BEM method for a rigid wind turbine without structural deflections and active control systems. While reviewing topics in the Q&A section, I came across the "stand-alone AeroDyn" application, which requires compilers to be set up in Fortran if we want to use it. Unfortunately, I am not familiar with Fortran, and I would like to know if there are other applications you could recommend for a rigid turbine BEM simulation (without structural deflection and control systems). Is there an alternative to "stand-alone AeroDyn," or is it possible to create a rigid turbine within FAST? If there is such an example in Fast, can you share it?

I came across the CCBlade application, but I am not sure if it can meet my requirements, and I think I need an expert opinion on this.

Thank you for your time. Best regards.

[jjonkman]

Dear @teocar,

Regarding AeroDyn, some releases of OpenFAST, including the newest v3.5.4, include a precompiled Windows executable of the standalone AeroDyn driver, so, a Fortran compiler may not be needed. Regardless, Fortran compilers and freely available and NREL has provided the scripts needed to compile the standalone AeroDyn driver, as documented here: https://openfast.readthedocs.io/en/main/source/install/index.html.

You can also run rigid wind turbine simulations within OpenFAST, but this will not be as efficient and will be harder to set-up than the standalone AeroDyn driver. To model a fully rigid wind turbine in OpenFAST, disable ServoDyn, BeamDyn, SubDyn, as well as all structural degrees of freedom within ElastoDyn.

CCBlade is a simplified model compared to the standalone AeroDyn driver. If steady aerodynamic-only performance under uniform inflow is what you are after, the standalone AeroDyn driver and CCBlade should yield similar results, but the standard AeroDyn driver is better for skewed inflow, turbulence, and transient events.

Best regards,

[teocar]

Dear @jjonkman ;

As you mentioned, the Aerodyn driver has been helpful, and I am grateful for that. Additionally, I am comparing my results with the literature, particularly with some BEM and CFD solutions that I have found in articles so far. Is there any report available where I can compare my results?

Thank you for your support.

Burmester at all: https://iopscience.iop.org/article/10.1088/1742-6596/753/8/082003/pdf
Pinto at all https://doi.org/10.1007/s40722-020-00162-y
H.Martin at all https://doi.org/10.1115/OMAE2012-83627

Kim at all https://doi.org/10.1016/j.renene.2012.08.029

[teocar]

Dear @jjonkman ,

Thanks for reply,
I would like to conduct a fatigue analysis on the NREL 5MW blade and have come across a couple of approaches. One involves using NuMAD to export a shell file compatible with ANSYS APDL, and another involves using MLife.

Do you know if there is any data in NuMAD for the NREL 5MW turbine, or if a CAD model with the material specifications for the 5MW turbine is available? I have extensively searched the forums but couldn’t find a conclusive result.

I would greatly appreciate your assistance on this matter.
Thank you in advance.

[jjonkman]

Dear @teocar,

Brian Resor of Sandia National Laboratory reversed-engineering the composite layup and internal structural details for the blade of the NREL 5-MW baseline wind turbine. See the following forum post for more information: https://forums.nrel.gov/t/structural-design-of-the-wind-turbine-blade/271.

Best regards,

[teocar]

Dear @jjonkman,

Yes, I have reviewed this page, but unfortunately, I cannot access the links shared under the forum topic. Would it be possible for you to share a copy with me if available?
3835716@ogrenci.bilecik.edu.tr

Best Regards.

[jjonkman]

Dear @teocar,

I’ve sent you the files via e-mail.

Best regards,

[teocar]

Dear @jjonkman ,
The mail has arrived. I am grateful for the mail.
Best Regards.

[teocar]

Dear @jjonkman;

Is there a forum that can help me with the problem I encountered with Numad or should I open it here again under a different tag?

[jjonkman]

I would suggest posting your NuMAD-related questions on our forum: https://forums.nrel.gov/. I'm not aware of a separate forum dedicated to NuMAD or other Sandia National Laboratory wind software.