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-   -   Modelling a Wind Farm in OpenFOAM (http://www.cfd-online.com/Forums/openfoam/105795-modelling-wind-farm-openfoam.html)

BigLearner August 9, 2012 05:41

Modelling a Wind Farm in OpenFOAM
 
Hi to all,

First of all, I want to introduce myshelf. I'm an Industrial Engineer and I'm very interested on learning how to model a wind farm with OpenFoam. I have a nice background in Wind Energy (I'm advanced user of WAsP and WindPRO) and also I have quite good background regarding the "wind theory".

I'm starting with openfoam, I've OpenFoam 2.1.1 installed with Ubuntu and I've read the User Manual as well I done the recommended examples. Also I've read several works regarding the modelling of wind flow over complex terrain using openFoam (i.e. Xabier Pedruelo, 2009 -someone has talked about this masters thesis in this forum).

Does anybody knows a tutorial, that explains well... how to model a windfarm?
(pre processing, solver and post processing)
Any recomendations about solvers? Is there any custom solver for Wind Energy?

I know that some "custom" codes are developed for modelling windfarms... like CFDWind 1.0 or O.F.Wind... Could anyone share this codes and the users manual? Are this codes free?

Any help will be apreciated :)

Thanks in advance to all and congratulations for this fantastic forum!

wyldckat August 9, 2012 06:15

Greetings BigLearner and welcome to the forum!

I'm unable to answer you directly, but I know of the existence of the SIG WindE: http://openfoamwiki.net/index.php/Sig_WindE

SIG: Special Interest Group
WindE: Wind Energy

Best regards,
Bruno

JoCo618 September 10, 2012 04:15

Hi BigLearner,

unfortunatelly I cannot answer your questions, but I can offer my help. As you, I am also at the beginning of using OpenFOAM. Until now, I have read a lot about OpenFOAM and I hope and guess that OpenFOAM is promising in the wind energy sector.

If you are interested, we can share ideas and develop a strategy how to achieve our goals of using OpenFOAM.

The best
JoCo

hananfoam September 24, 2012 06:14

Regarding the sigWind page in the wiki
 
Hello BigLearner and the rest,

I attended the sigWind first meeting in the OpenFOAM workshop last year in Penn-state (2011), and after this years OFW in Darmstadt I continued editing the page.
I can not say I am doing a very good job at it :) but I encourage you to put what you learn - if its is reference cases, best practices for control volume and boundary conditions etc.
I put up my begginer stuff - which was emulating Martinez 2011 Msc work, and I will put up more stuff as i go along.
At the moment i'm still patching up my python code, which will - based on the pyFoam python modules - make up my OpenFOAM wind farm simulation kit by the time i'm done.

My current focus is implementing variable roughness, and I will probably start by copying what Xabier Perduelo published in his 2009 Msc, but I would rather turn it into a python module since it fits along with the other stuff im doing.

Hanan.

gregjunqua September 26, 2012 03:00

I am not using it for modelling wind farm but i use this model for openfoam.
You should have a look.

http://wind.nrel.gov/designcodes/simulators/sowfa/

This openfoam model is coupled with a windfarm solver. Why I use it? because the documentation is clear, not like openfoam ... :p
There is even a sound document for introducing the model, one of the disadventage is that its still not be made for complex land ...
But could be a nice thing to start

elvis September 26, 2012 04:56

Hi,

will someone attend the "first Symposium on OpenFOAM in Wind Energy"?

hananfoam September 26, 2012 08:31

Yes, it should be very good, I have not used it - exactly because i am interested in complex terrain. I heard Mat Churchfield's lecture at the 6th openfoam conference, and will be happy if they adapt it to complex terrain - although at the moment I am using RANS and not LES, but in openfoam going from one to the other should be easy.

As to the conference - I want to go, hope I will get the funds from my mentor for it (or better yet - organize a group from my faculty!)

Hanan.

Husir October 23, 2012 00:43

Sowfa
 
Quote:

Originally Posted by gregjunqua (Post 383655)
I am not using it for modelling wind farm but i use this model for openfoam.
You should have a look.

http://wind.nrel.gov/designcodes/simulators/sowfa/

This openfoam model is coupled with a windfarm solver. Why I use it? because the documentation is clear, not like openfoam ... :p
There is even a sound document for introducing the model, one of the disadventage is that its still not be made for complex land ...
But could be a nice thing to start

Hi, have you successfully compiled the code with OpenFOAM 2.1.1? I am using Ubuntu 12.04 LTS. I followed the README and tried to compile the code on my machine but there were a few errors. Could you share some of your experiences about how to compile the code?

Thank you in advance.

gregjunqua October 23, 2012 03:42

Hi,
Can you show me all the error you got?
To see if i can help you. I remember during the compilation i got some warning but my code can work well.

Husir October 23, 2012 04:56

1 Attachment(s)
Quote:

Originally Posted by gregjunqua (Post 388055)
Hi,
Can you show me all the error you got?
To see if i can help you. I remember during the compilation i got some warning but my code can work well.

Thank you.

Please see the attached file for the all the message I have got from the compiling process. I am not sure where the problem comes from because I am new to OpenFOAM. Please help me to check the log file.

Thanks again!

gregjunqua October 23, 2012 22:07

Hi i am not such a pro in the installation program,

What i just see look like he don't find some file (but that i guess you find it)
I remember i had some problems like that when i had install it, but it was because my openfoam was out of date for this program and my wmake too..
perhaps you could check it

sorry if i cannot help you so much

jona November 12, 2012 23:08

Hi *,

the error

CALL RANDOM_SEED ( PUT=WaveSeed(1:2) )
1
Error: Size of 'put' argument of 'random_seed' intrinsic at (1) too small (2/12)

and the solution are discussed here:

https://wind.nrel.gov/forum/wind/vie....php?f=4&t=540

I had the same error, but after following the instructions above it resolved.

Have fun,

Jörn

didspoter December 5, 2012 13:03

1 Attachment(s)
Hi all, first I want to introduce myself, I am a meteorology student and I am trying to analyze the causes power losses of wind farm by modelling the flow through wind farm using OpenFOAM for my bachelor thesis. I use SOWFA to model the wind farm, but when i try to execute the Allrun on precursorABL/neutral i have some errors as i attached bellow.
Attachment 17486 :(
so can anybody explain why this happen? And what must i do to solve this? :confused: I am new to OpenFOAM and bash scripting.
Thank you for your attention.
Regards :)

JoCo618 March 5, 2013 04:25

First Symposium on OpenFOAMⓇ in Wind Energy
 
Hi all,

as elvis asked, is anyone participating in the Symposium on OpenFOAM in Wind Energy?

http://www.forwind.de/sowe/Site/Home.html

I'll be there and I would be glad to share some ideas?

The Best
JoCo


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