Modelling 1.5 MW Blade

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Patrick.Nardone
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Joined: Mon Nov 10, 2014 1:37 am
Organization: CFD+engineering
Location: Germany

Modelling 1.5 MW Blade

Postby Patrick.Nardone » Tue Dec 02, 2014 2:43 am

Hi everybody,
For a CFD-simulation i`m modelling the shape of the 1.5 MW turbine in CAD.
In the "Subcontract Report NREL/SR-500-32496" on page 16 is the following sentence written:

- The blade section was circular between the root at 5% ... , and then it transformed to the S818 30% airfoil shape ...

What does that mean "30 % airfoil shape" ?

Thanks for help.

Regards

Jason.Jonkman
Posts: 5071
Joined: Thu Nov 03, 2005 4:38 pm
Location: Boulder, CO
Contact:

Re: Modelling 1.5 MW Blade

Postby Jason.Jonkman » Tue Dec 02, 2014 6:30 am

Dear Patrick,

I think you mean NREL/SR-500-32495, which is the WindPACT Turbine Rotor Design Study report.

By "30%", I believe they mean a thickness-to-chord ratio of 30%. Table 3-2 on page 17 of that report refers to the airfoil aspect ratio of 0.3 for the S818 airfoil at 25% span for the 1.5-MW turbine.

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


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