Hello,
I would like to perform a wind simulation based on the " Frøya model spectral density" as defined in DNVGL-RP-C205
I was intending inputting the spectrum via the command "&data curves f_spectrum". But this spectrum do contain also a dependency on height z.
I could create different curves at various heights.
But my question is: how could I instruct moses to use these multiple curves, as in the "&ENV -W_SPECTRUM, STYPE" it seems only one spectrum is accepted.
Thanks in advance
Doug Graham
Hi Doug,
Nice to hear from you. I am not understanding your question. You want to use several curves at the same time? Or you want to use the wind spectrum data defined with "&data curves"?
Attached is a sample that uses the "&data curve" command to define a wind spectrum.
I hope this helps.
Georgina Maldonado
env_info.zip
Thanks Georgina for your reply.
From your example, the wind spectrum for the environment "i90f" is "-w_spec w_f".
This spectrum is defined from a &DATA_CURVE. All is clear to me up to this point.
The problem is the fact that, if you observe the equation on my first post, the spectrum is dependent also on z. So at each height the wind process has a different curve. Do you confirm me that it is impossible to input a height dependency for spectra? In this case I will consider only one spectrum curve, calculated at an "average" structure height
There is the option "-w_profile" that changes the wind according the height. The spectrum being dependent on the height is part of the embedded spectra.
I will try to set up some files showing this. It will take me some time.
Please send me this request to georgina.maldonado@bentley.com.
Thank you,