Definition of reference point for input wind speed

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Mahdi
Posts: 1
Joined: Mon Oct 04, 2021 9:29 am

Definition of reference point for input wind speed

Post by Mahdi »

Hello ENVI-met team, hope your doing fine.

I imported a geometry using Rhino plugin into spaces. in spaces, it seems that the lowest point of the terrain is several meters higher than the reference plane. in the other words, terrain occupies the space between reference plane to about several meters higher and the base of the buildings is about several meters higher than the ref plane.
my question is that where is the 10m above the ground for defining the input wind speed data? is it 10m above the reference plane in spaces or it takes into account the the presence of terrain?

I also attached the geometry.

thanks,
Mahdi.
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DragonflyEnvimet.rar
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Last edited by Mahdi on Mon Oct 04, 2021 5:20 pm, edited 1 time in total.

Tim
Posts: 3095
Joined: Mon May 15, 2017 3:46 pm

Re: Definition of reference point for input wind speed

Post by Tim »

Hi Mahdi,

The reference point is always 0 m. Wind speeds might thus come in very quick in higher terrain levels while they should be low near ground. That is why we usually recommend to not use terrain until we found a better solution for that.

Best regards,
Tim

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