Search found 16 matches

by Peter.Vella
Mon Dec 23, 2019 11:39 pm
Forum: Computer-Aided Engineering Software Tools
Topic: Power vs wind speed curve
Replies: 4
Views: 2675

Re: Power vs wind speed curve

Sorted .. Found in previous threads ../ Thanks
by Peter.Vella
Mon Dec 23, 2019 11:15 pm
Forum: Computer-Aided Engineering Software Tools
Topic: Power vs wind speed curve
Replies: 4
Views: 2675

Re: Power vs wind speed curve

Wher can I find the raw data to set up the 5 MW NREL wind speed vs. power curve please?
by Peter.Vella
Sat Sep 28, 2019 10:09 am
Forum: Systems Engineering Software Tools
Topic: Installation of OpenFAST
Replies: 13
Views: 7157

Re: Installation of OpenFAST

I have cloned the https://github.com/OpenFAST/r-test files.

What would be the next step please to read these files and have OpenFAST work on them?

Thanks
by Peter.Vella
Sat Sep 28, 2019 9:25 am
Forum: Systems Engineering Software Tools
Topic: Installation of OpenFAST
Replies: 13
Views: 7157

Re: Installation of OpenFAST

Thanks Dr. Jonkman. Managed to compile OpenFAST.
I now have problems in getting to have the openfast.exe file recoginize input files. Anywhere where I can get some help?

Thanks,
Peter
by Peter.Vella
Thu Sep 26, 2019 9:41 pm
Forum: Systems Engineering Software Tools
Topic: Installation of OpenFAST
Replies: 13
Views: 7157

Re: Installation of OpenFAST

Dear Mr. Jonkman,

I'm not sure if this is the correct thread but I am starting off to use FAST for my PhD studies in offshore energy storage for FOWT and not sure if I should start off with Fast ver. 8 or Open FAST.

What do you suggest please?

Peter Vella
by Peter.Vella
Sun Apr 20, 2014 12:12 am
Forum: Computer-Aided Engineering Software Tools
Topic: FAST Theory Manual
Replies: 1
Views: 2921

FAST Theory Manual

Dear Dr. Jonkman, Is there a FAST Theory Manual? I need some background information as to formulas such as that for the TwFAStif, i.e. its derivation etc. and similarly for the other property formulas used in the software. In one of your presentations you mention an "unofficial theory manual&qu...
by Peter.Vella
Wed Apr 16, 2014 9:38 pm
Forum: Structural Analysis
Topic: ITI 5MW Barge
Replies: 18
Views: 12806

Re: ITI 5MW Barge

Hi Jason, So for now I will use the Barge with a significant wave height of 2.5 m (Mediterranean conditions within 5 km of this Maltese shoreline) with an exceedance probability of 5 % (Malta Significant Wave Height Study: Malta Maritime Authority, December 2003) since I have a deadline for my draft...
by Peter.Vella
Tue Apr 15, 2014 10:22 pm
Forum: Structural Analysis
Topic: ITI 5MW Barge
Replies: 18
Views: 12806

Re: ITI 5MW Barge

Hi Jason, Further to my previous posting earlier on I am having a look at the ver_8 file for the TLP platform. Can I modify the files to have "catenary mooring"? Is there a FAST_8 user guide so I can modify lines such as True CompMAP - Compute mooring line dynamics (flag) ? Thanks
by Peter.Vella
Tue Apr 15, 2014 9:34 pm
Forum: Structural Analysis
Topic: ITI 5MW Barge
Replies: 18
Views: 12806

Re: ITI 5MW Barge

Hi Jason, So really its the "semi-submersible" model which I would need. When will this model be launched for the public? Admittedly I am quite tight for time so in its stead is there a model which I could I use to simulate a the "floating WT platform" and respective "floati...
by Peter.Vella
Tue Apr 15, 2014 11:59 am
Forum: Structural Analysis
Topic: ITI 5MW Barge
Replies: 18
Views: 12806

Re: ITI 5MW Barge

Dear Jason,

What would you suggest? I need a concept offshore platform on which I need to simulate a 5 MW HAWT and photovoltaic panels (& their respective wind loading) .. so that I can then compare ..

Thanks
by Peter.Vella
Mon Apr 14, 2014 8:59 pm
Forum: Computer-Aided Engineering Software Tools
Topic: ITIBarge_Win32 DLL File
Replies: 2
Views: 1297

Re: ITIBarge_Win32 DLL File

Dear Bonnie,

For now I have moved to ver_7. Once I have sorted it out in this ver I will revert to the ver_8 set of files.

Thanks
by Peter.Vella
Mon Apr 14, 2014 8:57 pm
Forum: Structural Analysis
Topic: ITI 5MW Barge
Replies: 18
Views: 12806

Re: ITI 5MW Barge

Dear Jason, My objective is to first run a full simulation with the 5MW WT on the ITI Barge (as already done) so I can understand the full workings of FAST and then hope to modify some of the variables to simulate Mediterranean conditions for the same Barge-WT combination and also replace the WT loa...
by Peter.Vella
Mon Apr 14, 2014 8:52 pm
Forum: Computer-Aided Engineering Software Tools
Topic: Running Offshore ITI Barge Files
Replies: 5
Views: 10622

Re: Running Offshore ITI Barge Files

Will check .. How can I attach a screen shot of the error? Thanks
by Peter.Vella
Mon Apr 14, 2014 2:27 am
Forum: Computer-Aided Engineering Software Tools
Topic: Running Offshore ITI Barge Files
Replies: 5
Views: 10622

Running Offshore ITI Barge Files

I am trying to run the full simulation and progressing after having done some file additions/ movements to the original downloaded folder ITIBrg4. However I am now stuck on the error "ff wind array boundaries violated. Grid too small in z direction z = 92.8 64 m is above the grid. Error getting...
by Peter.Vella
Sun Apr 13, 2014 2:02 am
Forum: Structural Analysis
Topic: ITI 5MW Barge
Replies: 18
Views: 12806

ITI 5MW Barge

If I were to change the payload of the ITI Barge, i.e. put photovoltaic panels instead of a wind turbine where can i refer to change the barge design dimensions and hence ultimate cost of the barge? My objective is to do an economic feasibility study between offshore wind turbines and photovoltaic p...

Go to advanced search