Search found 560 matches
- Tue Dec 03, 2019 9:27 am
- Forum: Computer-Aided Engineering Software Tools
- Topic: FAST8 Build Model problems
- Replies: 3
- Views: 156
Re: FAST8 Build Model problems
I don't have any experience building Simulink models for real-time simulation. I have read some comments about it in the MATLAB/Simulink documentation that I sent you. I do not think you have to modify the header file; I think you need to make sure MATLAB is setting the appropriate preprocessor flag...
- Wed Nov 20, 2019 1:15 pm
- Forum: Computer-Aided Engineering Software Tools
- Topic: FAST8 Build Model problems
- Replies: 3
- Views: 156
Re: FAST8 Build Model problems
It looks like you've got multiple definitions of the header files that are needed for the build process. I am not sure why it would be looking for files in both the extern/include and rtw/c/src directories. Did you modify anything in the build process? Or any of the include paths? When you build usi...
- Wed Oct 23, 2019 9:33 am
- Forum: Computer-Aided Engineering Software Tools
- Topic: Interface Openfast in Simulink
- Replies: 1
- Views: 290
Re: Interface Openfast in Simulink
The error you are showing indicates that the path to FAST_Library.h is not correct in the mex command. That said, the OpenFAST interface to Simulink has not worked after NREL moved from FAST8 to OpenFAST (the error messages in your attachment refer to this problem). I initiated a pull request to fix...
- Wed Oct 16, 2019 4:44 pm
- Forum: Computer-Aided Engineering Software Tools
- Topic: MATLAB2HD script
- Replies: 2
- Views: 469
Re: MATLAB2HD script
Hi, Charlie. I am not exactly sure what the problem is, but the warning message indicates that it thinks there is a variable called "!" in the template that has a value of "20.0000 0.6300 0.6300 0 0 0 0 0 0 0 0 0 0". Perhaps it's not reading a table correctly? Do you get this pro...
- Fri Sep 06, 2019 11:28 am
- Forum: Computer-Aided Engineering Software Tools
- Topic: Visualize full-field Turbsim data and anemometer equivalent wind speed
- Replies: 6
- Views: 1027
- Fri Jul 26, 2019 9:54 pm
- Forum: Computer-Aided Engineering Software Tools
- Topic: Replacement for RunNTM?
- Replies: 14
- Views: 2694
Re: Replacement for RunNTM?
1. Yes 2. Using the Matlab toolbox, I think the following code should do what you want. It reads the primary TurbSim file called 'TurbSim.inp' , sets the wind speed to 5 m/s, and writes a new TurbSim file called 'NewTurbSimFile.inp', using the format in a template TurbSim file called 'TurbSim_templa...
- Fri Jul 26, 2019 9:37 pm
- Forum: Computer-Aided Engineering Software Tools
- Topic: FAST Error FORRTL
- Replies: 1
- Views: 301
Re: FAST Error FORRTL
My guess is that the controller you are using (or some other part of the code that didn't come from NREL) is trying to read from a file named 'U:\git\VAero\windturbineframework_mreich\fort.86', which doesn't exist.
- Tue Jul 16, 2019 10:16 pm
- Forum: Structural Analysis
- Topic: Problem in Running fx_mbc3 and fx_getMats
- Replies: 5
- Views: 867
Re: Problem in Running fx_mbc3 and fx_getMats
I have run the Matlab code with the file you attached, and it runs. I did notice a problem with how it reads the rotating frame column (i.e., it assumes nothing is in the rotating frame with this version of the .lin file), so I've submitted a pull request for that here: https://github.com/OpenFAST/m...
- Mon Jun 17, 2019 8:40 pm
- Forum: Computer-Aided Engineering Software Tools
- Topic: Access violation reading location
- Replies: 3
- Views: 680
Re: Access violation reading location
I suspect that the code isn't linking with the new compiled version of the FAST_types.f90/ElastoDyn_Types.f90 files, which is what causes the access violations. (I have had this problem before, myself. I am not sure if this is a Visual Studio problem or if there is something wrong in the way the FAS...
- Thu May 23, 2019 6:43 am
- Forum: Inflow Turbulence
- Topic: intermittent FF wind field with TurbSim
- Replies: 8
- Views: 1712
Re: intermittent FF wind field with TurbSim
Your TIMESR input is rotated 180 from the mean wind direction. The mean u component should almost always be positive, but you've defined them to all be negative in your input file. TurbSim's output is actually equivalent to your input file, though. It uses the convenction that u is positive in the m...
- Wed May 15, 2019 9:00 pm
- Forum: Inflow Turbulence
- Topic: intermittent FF wind field with TurbSim
- Replies: 8
- Views: 1712
Re: intermittent FF wind field with TurbSim
Anup,
Is the wind direction at the hub 0 degrees? You should be able to see this in the TurbSim summary file.
If it is 0, I would not expect any difference in the wind time series output, including the sign.
Is the wind direction at the hub 0 degrees? You should be able to see this in the TurbSim summary file.
If it is 0, I would not expect any difference in the wind time series output, including the sign.
- Mon May 13, 2019 2:34 pm
- Forum: Computer-Aided Engineering Software Tools
- Topic: Sending RtAeroPwr via ServoDyn to Bladed-Style DLL Controller
- Replies: 2
- Views: 831
Re: Sending RtAeroPwr via ServoDyn to Bladed-Style DLL Controller
Hi, Paul. I don't see anything in your code that would be problematic. I suspect that the code isn't linking with the new compiled version of the FAST_types.f90 files, which is what causes the access violations. (I have had this problem before, myself. I am not sure if this is a Visual Studio proble...
- Wed May 08, 2019 9:13 pm
- Forum: Computer-Aided Engineering Software Tools
- Topic: Instructions for Compiling FAST
- Replies: 200
- Views: 115601
Re: Instructions for Compiling FAST
Juan, You need to tell the compiler to preprocess the source file. With gfortran, you add the "-cpp" option to the build command that you used (on Intel Fortran, you use '-fpp'): gfortran -cpp -c -fPIC DISCONChanges.f90 In these particular source files, though, the preprocessor directives ...
- Wed May 08, 2019 9:02 pm
- Forum: Inflow Turbulence
- Topic: intermittent FF wind field with TurbSim
- Replies: 8
- Views: 1712
Re: intermittent FF wind field with TurbSim
Hi Anup, You should get exactly the same time series output at the single point that you input; I would assume that you set that point to be at the hub. If you are not getting that output, check the time-series input file to make sure your measurement point is exactly on a grid point and that it's r...
- Wed Apr 24, 2019 8:55 pm
- Forum: Inflow Turbulence
- Topic: nComp=2 in TurbSim
- Replies: 2
- Views: 1151
Re: nComp=2 in TurbSim
Hi, Jan. I think this bug has been fixed in the latest version of OpenFAST (https://github.com/openfast/openfast). It might be in the master branch, but I'm pretty certain it was merged into the dev branch. Let me know if that doesn't fix the problem. When you set nComp to 2, though, it just sets w ...