Search found 11 matches

by Florence.Haudin
Mon Feb 03, 2020 6:11 am
Forum: Computer-Aided Engineering Software Tools
Topic: Process stopped
Replies: 1
Views: 179

Process stopped

Hi, I am trying to run a long simulation (11 000 s ) with Openfast using Hydrodyn, Elastodyn et MAP modules. My floating object is a semisubmersible floater with a rigid tower and mooring system (OC6 LC5). Using WaveMod equal to 5, I am imposing the wave elevation with an external file. After 1000 o...
by Florence.Haudin
Fri Dec 06, 2019 7:05 am
Forum: Computer-Aided Engineering Software Tools
Topic: Free decay tests
Replies: 5
Views: 721

Re: Free decay tests

Dear Jason, Thanks for your answer. In fact that was what I thought I had to do and started to do : freeze unrelevant degrees of freedom, and set to zero mass and inertia. Nervertheless, I still don't really understand what I have to do with the geometric data of the section Turbine Configuration (c...
by Florence.Haudin
Thu Nov 28, 2019 9:31 am
Forum: Computer-Aided Engineering Software Tools
Topic: Free decay tests
Replies: 5
Views: 721

Re: Free decay tests

Dear Jason, Thanks for your answer. Is it possible with Openfast to run a simulation with Hydrodyn, Moordyn and Elastodyn with nothing on the floater or only a rigid tower for instance but no turbine. I don't understand how to "remove" the tower or the blades in Elastodyn. Thanks in advanc...
by Florence.Haudin
Tue Nov 05, 2019 4:00 am
Forum: Computer-Aided Engineering Software Tools
Topic: Free decay tests
Replies: 5
Views: 721

Free decay tests

Good morning, I would like to know if there is among the examples provided for openfast, an example of free decay tests for a semi submersible or another platform? I guess that the user has to implement himself the AddCLin matrix taken into account the mooring configuration/parameters? Thanks in adv...
by Florence.Haudin
Wed Aug 07, 2019 11:34 am
Forum: Computer-Aided Engineering Software Tools
Topic: calculation of hydroForce on a given member
Replies: 3
Views: 391

Re: calculation of hydroForce on a given member

Good evening Jason, Thanks for your reply. I indeed was referring to the output of Hydrodyn. I have read the documentation and seen the available outputs. But from what I understand, the member and joints outputs are forces for the strip theory (Drag, inertia at least). I am interested in using the ...
by Florence.Haudin
Wed Aug 07, 2019 9:27 am
Forum: Computer-Aided Engineering Software Tools
Topic: calculation of hydroForce on a given member
Replies: 3
Views: 391

calculation of hydroForce on a given member

Good afternoon,
Is it possible to calculate the hydroForce and hydroMoment of a selected member ?
If yes, is there somewhere an example of the .dat configuration file ?
Thanks in advance.
Best regards.
Florence Haudin.
by Florence.Haudin
Fri Mar 01, 2019 4:00 am
Forum: Computer-Aided Engineering Software Tools
Topic: Forced motion imposed on a floater
Replies: 1
Views: 630

Forced motion imposed on a floater

Good morning Mr Jonkman, I am reposting this message that was sandwiched between already treated queries. First of all, thanks for your past answer on the PropPot flag that made things clearer for me. I have another query to run simulations with the semi submersible : to generate a forced motion on ...
by Florence.Haudin
Thu Feb 14, 2019 2:33 am
Forum: Computer-Aided Engineering Software Tools
Topic: OC4 semi submersible
Replies: 13
Views: 1465

Re: OC4 semi submersible

Dear Mr Jonkman, Thanks for your answer. Just to be sure I fully understand, putting PotProp to True means the only loads are viscous drag and ballasting one. In other words, I disable the potential loads so I am not having a mix approach with potential flow + additionnal drag term? If I am not mist...
by Florence.Haudin
Wed Feb 13, 2019 11:34 am
Forum: Computer-Aided Engineering Software Tools
Topic: OC4 semi submersible
Replies: 13
Views: 1465

Re: OC4 semi submersible

Good afternoon Mr Jonkman, Thanks for your past answer on the PropPot flag that made things clearer for me. I have another query to run simulations with the semi submersible : to generate a forced motion on the floater, what is the proper way to proceed; I would think to put WAMITInputsMod = 2 and t...
by Florence.Haudin
Mon Feb 11, 2019 4:40 am
Forum: Computer-Aided Engineering Software Tools
Topic: OC4 semi submersible
Replies: 13
Views: 1465

Re: OC4 semi submersible

Dear Mr. Jonkman,

The Test006 runs for me. Thanks
I am working on Ubuntu. Hydrodyn was compiled with Openfast.

Best regards.
Florence.
by Florence.Haudin
Fri Feb 08, 2019 12:14 pm
Forum: Computer-Aided Engineering Software Tools
Topic: OC4 semi submersible
Replies: 13
Views: 1465

OC4 semi submersible

Good evening, I am running HydroDyn as a standalone module to study the response of the OC4 semi submersible. I have performed tests in periodic waves. The wave elevations and forces seem reasonable with respect to the parameters WaveTp and WaveHs. I have added a current with the depth-dependent mod...

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