Search found 10 matches

by Thomas.Enevoldsen
Thu Apr 11, 2019 2:08 pm
Forum: Computer-Aided Engineering Software Tools
Topic: Drive-train model validation (Compared to FAST)
Replies: 9
Views: 2215

Re: Drive-train model validation (Compared to FAST)

Dear Jason, Thank you very much for your responses once again. I apologize for incorrectly comparing the wrong moments, I have no corrected this mistake. Please excuse me. I have been looking at the RtAeroCp values and I see that for most of my simulations they exceed Betz limit. Searching the forum...
by Thomas.Enevoldsen
Mon Apr 08, 2019 12:50 pm
Forum: Computer-Aided Engineering Software Tools
Topic: Drive-train model validation (Compared to FAST)
Replies: 9
Views: 2215

Re: Drive-train model validation (Compared to FAST)

Dear Jason, Once again, thank you very much for your response, I greatly appreciate it. The simulations described in this thread is with the default modes from the included CertTest with FASTv8, using Test18.fst, with a different seed for the full-field wind input. Below are three observations I hav...
by Thomas.Enevoldsen
Fri Apr 05, 2019 6:07 am
Forum: Computer-Aided Engineering Software Tools
Topic: Drive-train model validation (Compared to FAST)
Replies: 9
Views: 2215

Re: Drive-train model validation (Compared to FAST)

Dear Jason, Thank you very much for your response. I have a follow-up question regarding some of the FAST Outputs. Currently I'm looking for the moments that occur on the tower-top/Nacelle, which causes a change in angle of the Nacelle. Since I have no yaw control activated, I assume that the angles...
by Thomas.Enevoldsen
Tue Apr 02, 2019 5:30 pm
Forum: Computer-Aided Engineering Software Tools
Topic: Drive-train model validation (Compared to FAST)
Replies: 9
Views: 2215

Re: Drive-train model validation (Compared to FAST)

Dear Jason, Thank you very much for your response. I really appreciate the help. The corrected for the rotor inertia has been noted, thank you. Regarding point 2), by using RtAeroMxh I obtain the results as predicted. I now realize the difference between the AeroDyn and ElastoDyn outputs, I apologiz...
by Thomas.Enevoldsen
Tue Apr 02, 2019 7:46 am
Forum: Computer-Aided Engineering Software Tools
Topic: Drive-train model validation (Compared to FAST)
Replies: 9
Views: 2215

Drive-train model validation (Compared to FAST)

Hello forum, First off, thank you for all the feedback and help given so far. It has all been very helpful. Once again I apologise if I have overlooked something or if the questions is of silly nature. In various litterature, the drive-train is modelled as the following 3rd order system. https://i.i...
by Thomas.Enevoldsen
Tue Mar 26, 2019 8:45 am
Forum: Computer-Aided Engineering Software Tools
Topic: Adding additional Nacelle IMUs
Replies: 1
Views: 837

Adding additional Nacelle IMUs

Hi all, Using the values, NcIMUxn, NcIMUyn and NcIMUzn, I am able to position the IMU as desired. Though, the turbine setup I am mimicking has multiple IMUs located on the Nacelle. Reviewing the various documentations and manuals provides me with no further information regarding adding the additiona...
by Thomas.Enevoldsen
Thu Mar 21, 2019 1:07 am
Forum: Computer-Aided Engineering Software Tools
Topic: Visualize full-field Turbsim data and anemometer equivalent wind speed
Replies: 18
Views: 2377

Re: Visualize full-field Turbsim data and anemometer equivalent wind speed

Hi Jason,

Thank you and Bonnie for this, this will definitely be helpful. I really appreciate the help.

Best regards,

Thomas Enevoldsen
by Thomas.Enevoldsen
Wed Mar 20, 2019 5:54 pm
Forum: Computer-Aided Engineering Software Tools
Topic: Visualize full-field Turbsim data and anemometer equivalent wind speed
Replies: 18
Views: 2377

Re: Visualize full-field Turbsim data and anemometer equivalent wind speed

Dear Jason, Thanks for the reply. I have completely overlooked the locations defined by the WindVxiList, WindVyiList, and WindVziLists in the "NRELOffshrBsline5MW_InflowWind_12mps.dat" file. Sorry about that. Also thank you for the clarification regarding the random events which occur when...
by Thomas.Enevoldsen
Wed Mar 20, 2019 9:07 am
Forum: Computer-Aided Engineering Software Tools
Topic: Visualize full-field Turbsim data and anemometer equivalent wind speed
Replies: 18
Views: 2377

Visualize full-field Turbsim data and anemometer equivalent wind speed

Hi all, Thank you very much for developing and maintaining the available software tools. In relation to my thesis I'm doing some simulations using the 5MW reference turbine, where I'm doing some condition monitoring. I have a few questions regarding Turbsim and InflowWind, since the various wind phe...
by Thomas.Enevoldsen
Sat Mar 16, 2019 8:35 am
Forum: Computer-Aided Engineering Software Tools
Topic: FAST theory manual
Replies: 322
Views: 48888

Re: FAST theory manual

Hi,

I would also like to request a copy of the manual.

[Edit: email removed after receiving manual]

Best regards,

Thomas

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