Disable function that stops the simulation at tower strike

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Kemal.Kartal
Posts: 41
Joined: Mon Jan 11, 2016 5:01 am
Organization: self
Location: Germany

Disable function that stops the simulation at tower strike

Postby Kemal.Kartal » Mon May 18, 2020 9:56 am

Hi,

I do not want that FAST is abording the simulation when a tower strike happens. It should complete the simulation.

In which files are which changes are necessary? I searched for "tower strike" in the files and only found it in Aerodyn.f90 and AeroSubs.f90

I hope someone can help me!


Best regards
Kemal

Jason.Jonkman
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Joined: Thu Nov 03, 2005 4:38 pm
Location: Boulder, CO
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Re: Disable function that stops the simulation at tower strike

Postby Jason.Jonkman » Mon May 18, 2020 11:01 am

Hi Kemal,

It is the following code in AeroDyn.f90 that is causing FAST to abort upon the tower strike:

Code: Select all

if ( TwrClrnc <= 0.0_ReKi ) then
   call SetErrStat(ErrID_Fatal, "Tower strike.", ErrStat, ErrMsg, RoutineName)
end if

You could change

Code: Select all

ErrID_Fatal
to

Code: Select all

ErrID_Warn
and recompile to issue a warning that will not result in the simulation aborting. Of course, the simulation may not be realistic during the tower strike because FAST does not model the impact forcing.

Best regards,
Jason Jonkman, Ph.D.
Senior Engineer | National Wind Technology Center (NWTC)

National Renewable Energy Laboratory (NREL)
15013 Denver West Parkway | Golden, CO 80401
+1 (303) 384 – 7026 | Fax: +1 (303) 384 – 6901
nwtc.nrel.gov

Kemal.Kartal
Posts: 41
Joined: Mon Jan 11, 2016 5:01 am
Organization: self
Location: Germany

Re: Disable function that stops the simulation at tower strike

Postby Kemal.Kartal » Mon May 18, 2020 12:47 pm

Thanks, it worked :D

Best Regards
Kemal


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