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by Bonnie.Jonkman
Tue Sep 30, 2008 11:17 am
Forum: Inflow Turbulence
Topic: TurbSim v1.40 available
Replies: 0
Views: 6586

TurbSim v1.40 available

Hello Design Codes Users, TurbSim version 1.40 has been uploaded to the NWTC Design Codes web site. Version 1.40 includes some changes to the summary file and to calculations of parameters in all the non-IEC spectral models. The calculations in the IEC models have not changed, nor are there any chan...
by Bonnie.Jonkman
Thu Sep 04, 2008 12:00 pm
Forum: Inflow Turbulence
Topic: TurbSim & Design Codes Update Workshops
Replies: 4
Views: 17022

Dear Wind Turbine Modeling Enthusiasts, Thank you to all who have already registered for the upcoming TurbSim and Design Codes Workshops. For those of you who are planning to attend but have not yet registered, please remember to send your completed registration form to Bonnie Jonkman by Friday, Sep...
by Bonnie.Jonkman
Tue Aug 19, 2008 6:30 pm
Forum: Inflow Turbulence
Topic: TurbSim & Design Codes Update Workshops
Replies: 4
Views: 17022

Registration for the TurbSim and Design Codes Workshops

Dear Wind Turbine Modeling Enthusiasts, We have been making further plans for the TurbSim and Design Codes Workshops to be held at the National Wind Technology Center September 22-25, 2008. If you are planning to attend, please complete the registration form and return it to Bonnie Jonkman by Septem...
by Bonnie.Jonkman
Fri Aug 15, 2008 10:56 am
Forum: Inflow Turbulence
Topic: TurbSim & Design Codes Update Workshops
Replies: 4
Views: 17022

Further details (including a registration form) regarding the upcoming TurbSim and Design Codes Workshops at the NWTC will be sent out next week.

Stay tuned....
by Bonnie.Jonkman
Tue Jul 15, 2008 9:27 am
Forum: Inflow Turbulence
Topic: Turbsim IECturbc Parameter
Replies: 2
Views: 7277

When you specify a turbulence intensity (I) in TurbSim's IECturbc parameter, the standard deviation is calculated by sigma_1 = V_hub*I/100.
by Bonnie.Jonkman
Fri Apr 04, 2008 6:02 pm
Forum: Inflow Turbulence
Topic: TurbSim v1.30 available
Replies: 0
Views: 6890

TurbSim v1.30 available

I have uploaded a new version of TurbSim (v1.30) to the NWTC Design Codes web site. You can download it at http://wind.nrel.gov/designcodes/preprocessors/turbsim/ . Version 1.30 contains two new inputs to the input file. The first is a true/false switch that allows the user to scale the output of th...
by Bonnie.Jonkman
Mon Mar 05, 2007 3:50 pm
Forum: Inflow Turbulence
Topic: TurbSim v1.21 available on the NWTC Design Codes website
Replies: 0
Views: 14709

TurbSim v1.21 available on the NWTC Design Codes website

A new version of TurbSim is now available at http://wind.nrel.gov/designcodes/preprocessors/turbsim/. TurbSim v1.21 incorporates new coherent structure scaling for the three wind farm models (WF_UPW, WF_07D, and WF_14D) and fixes a problem Marshall Buhl found when generating binary *.bts files with ...
by Bonnie.Jonkman
Fri Oct 27, 2006 10:32 am
Forum: Inflow Turbulence
Topic: TurbSim v1.20 available on the NWTC Design Codes website
Replies: 0
Views: 11495

TurbSim v1.20 available on the NWTC Design Codes website

A new version of TurbSim is now available at http://wind.nrel.gov/designcodes/preprocessors/turbsim/. TurbSim v1.20 incorporates new spectral scaling for the NWTCUP model, based on measurements from the NWTC LIST experiment. In previous versions of the code, the NWTCUP model used spectra from the wi...
by Bonnie.Jonkman
Tue Apr 04, 2006 1:25 pm
Forum: Inflow Turbulence
Topic: Changing the wind directions when using Turbsim
Replies: 3
Views: 10644

Hi, There is a wind direction input in TurbSim that changes the mean wind direction, but the direction must be constant for the wind file. I don't recommend using this feature with grids to be used in AeroDyn because the turbulence grids march through the turbine, in the x-direction, at the hub-heig...
by Bonnie.Jonkman
Thu Jan 19, 2006 5:39 pm
Forum: Inflow Turbulence
Topic: TurbSim and mean wind speed
Replies: 1
Views: 8332

RE: TurbSim and mean wind speed

Hi, The differences you see between the mean wind speed printed in the .sum file and the values you calculated in the .dat and .hh output files are a result of record length. The .sum file statistics are based on the "length of the analysis time series" from the input file. However, the ou...

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