Search found 12 matches

by Rocio.Torres
Wed Aug 28, 2019 4:30 am
Forum: Structural Analysis
Topic: Definition of parameters
Replies: 20
Views: 9962

Re: Definition of parameters

Hi Jason,

Crystal clear now. Thank you very much.

Best regards,
Rocío
by Rocio.Torres
Tue Aug 27, 2019 6:12 am
Forum: Structural Analysis
Topic: Definition of parameters
Replies: 20
Views: 9962

Re: Definition of parameters

Hi Jason, Thank you. But I am afraid I am still confused...Then the "PitchAxis" variable in the ElastoDyn module of FAST v8 is NOT the fraction of the chord from the leading edge to the actual pitch axis, is it? Is there any way I can calculate the actual pitch axis from the information co...
by Rocio.Torres
Mon Aug 26, 2019 4:50 am
Forum: Structural Analysis
Topic: Definition of parameters
Replies: 20
Views: 9962

Re: Definition of parameters

Hi again Jason, I wrote some time ago because I was trying to adapt an V27 OpenFAST model to the new turbine Orcaflex feature and I had some doubts about the definition of certain parameters you very kindly clarified. In that time you told me the neutral axis in ElastoDyn is assumed to lie on the pi...
by Rocio.Torres
Fri Jun 14, 2019 9:05 am
Forum: Structural Analysis
Topic: Definition of parameters
Replies: 20
Views: 9962

Re: Definition of parameters

Hi Jason, Thank you for your answer. I was hoping I could derive those inputs somehow from FASTs inputs, but I see it is not that easy. I'll take 25% of the chord for the aerodynamic centre for now exept for the root (50%) and, if I understood correctly, can I make neutral axis= PitchAxis parameter ...
by Rocio.Torres
Thu Jun 13, 2019 12:28 pm
Forum: Structural Analysis
Topic: Definition of parameters
Replies: 20
Views: 9962

Re: Definition of parameters

Dear Jason, I am trying to adapt the OpenFAST model of a V27 turbine to the new turbine object in Orcaflex. I am facing some difficulties however to fullfil the blade geometry data since two of the inputs required are the offset of the neutral axis and the aerodynamic centre from the leading edge of...
by Rocio.Torres
Fri Nov 02, 2018 4:45 am
Forum: Computer-Aided Engineering Software Tools
Topic: Extreme events
Replies: 28
Views: 11497

Re: Extreme events

Thank you Jason,

I'll look into that.

Best regards,
by Rocio.Torres
Thu Nov 01, 2018 7:34 am
Forum: Computer-Aided Engineering Software Tools
Topic: Extreme events
Replies: 28
Views: 11497

Re: Extreme events

Hello all! I am trying to reproduce an idling EWM1 DLC with a Vhub=0.8Vref=40m/s (class IC) and a yaw misalignment of 20º using the 5MW baseline model (land version). Blades pitched to 85º. For this, in addition to setting the corresponding parameters to make it an "idling" case I am fixin...
by Rocio.Torres
Thu Oct 18, 2018 6:35 am
Forum: Computer-Aided Engineering Software Tools
Topic: Extreme events
Replies: 28
Views: 11497

Re: Extreme events

Dear Jason,

Again, thank you for your kind and rapid response and help!

Best regards,
Rocío
by Rocio.Torres
Mon Oct 15, 2018 9:54 am
Forum: Computer-Aided Engineering Software Tools
Topic: Extreme events
Replies: 28
Views: 11497

Re: Extreme events

Dear Jason, In order to run an idling condition case with FASTv8, besides setting the following parameters: ServoDyn: PCMode = 0 (disable pitch control) GenTiStr = True TimGenOn = 9999.9 (a large don't care > TMax) ElastoDyn: True GenDOF BlPitch1 = BlPitch2 = BlPitch3 = 90.0 (fully feathered) RotSpe...
by Rocio.Torres
Tue Sep 04, 2018 8:01 am
Forum: Rotor Aerodynamics
Topic: NREL 5-MW reference turbine - CP, CQ, CT Coefficients
Replies: 35
Views: 77617

Re: NREL 5-MW reference turbine - CP, CQ, CT Coefficients

Dear Jason,

Ok, I understand that, thank you very much for your help.

Best regards,
Rocío
by Rocio.Torres
Mon Sep 03, 2018 6:04 am
Forum: Rotor Aerodynamics
Topic: NREL 5-MW reference turbine - CP, CQ, CT Coefficients
Replies: 35
Views: 77617

Re: NREL 5-MW reference turbine - CP, CQ, CT Coefficients

Dear Jason, Thank you for your answer. Doing as you say, I would have to define a row for each simulation, fully specifying all of the wind speed, rotor speed and pitch values. And I get I would be obtaining an output file corresponding to each of these rows (containing the time-series information f...
by Rocio.Torres
Sat Sep 01, 2018 7:41 am
Forum: Rotor Aerodynamics
Topic: NREL 5-MW reference turbine - CP, CQ, CT Coefficients
Replies: 35
Views: 77617

Re: NREL 5-MW reference turbine - CP, CQ, CT Coefficients

Hi all, I am looking to obtain CP(TSR, Beta) and CT (TSR, Beta) surfaces for the 5MW reference offshore wind turbine in a similar way as Jason and Rannam did with WT_perf back in 2012 but for a wider range of TRS and pitch values. From what I've read through different threads of the forum WT_perf is...

Go to advanced search