Orcina news

Here you will find the latest news on the development of OrcaFlex. Alongside our LinkedIn page, it is a valuable source of information about what we are up to!

OrcaWave validation

Back in November 2019, we released OrcaFlex version 11.0. This included the initial release of our diffraction analysis program OrcaWave.

At the time of release, we had performed extensive validation of OrcaWave, by comparing its results to theoretical predictions where possible, and also by comparing results from OrcaWave to results from Wamit. We have now written up this validation work and published it in a comprehensive validation report.

The report (including all input files and meshes) can be downloaded from the validation page.

An introduction to the Python interface to OrcaFlex, updated

Back in 2016 we published An introduction to the Python interface to OrcaFlex. This is a high level overview and introduction to the Python interface that attempts to fill in some of the gaps not covered by the reference documentation.

We have just released an updated and extended version of this document. The document now covers some functionality that has been added to OrcaFlex since its original release in 2016, specifically frequency domain and diffraction. Additionally, we have added sections covering extreme value statistics and fatigue analysis.

The updated version of the document can be downloaded from our documentation page.

We also offer a single day introductory workshop devoted entirely to the Python interface to OrcaFlex.

OrcaFlex 11.0c released

We have just released a minor upgrade to OrcaFlex, version 11.0c. Version 11.0c introduces some minor new functionality and fixes a number of bugs. Full details of the changes are described in the documentation:

We recommend that all users of 11.0 upgrade to 11.0c.

A patch to upgrade from 11.0a or 11.0b to 11.0c can be downloaded here. The full installation program can also be downloaded from your Orcina download page. Please contact us if you do not have the link to your Orcina download page.

Windows 7 end of support

Microsoft support for Windows 7 ended on the 14th January 2020. As a consequence of this, we are no longer supporting our software products on Windows 7. Our internal IT policies mean that we no longer have any Windows 7 machines on which to test our products, and are therefore unable to officially support our products on Windows 7.

Note that this change does not mean that our products will stop working on Windows 7 in the near future. Existing versions of our software that are known to work on Windows 7 will of course continue to do so.

Future releases of our products are also likely to continue to work perfectly well on Windows 7. Our underlying code base is very stable and we rarely make changes that lead to incompatibilities with operating system versions. However, because we are no longer able to test our products on Windows 7, there may come a time when we release new versions of our software that are not compatible with Windows 7.

OrcaFlex 11.0b released

We have just released a minor upgrade to OrcaFlex, version 11.0b. Version 11.0b introduces some minor new functionality and fixes a number of bugs. Full details of the changes are described in the documentation:

The bug fixes are particularly important for OrcaWave and so we especially recommend that you install this upgrade if you are using OrcaWave.

A patch to upgrade from 11.0a to 11.0b can be downloaded here. The full installation program can also be downloaded from your Orcina download page. Please contact us if you do not have the link to your Orcina download page.

OrcaFlex 10.3e released

We have just released a minor upgrade, version 10.3e, which introduces support for Python 3.8, and fixes a number of bugs. Full details of the changes are described in the documentation. We recommend that users of 10.3 upgrade to 10.3e.

A patch to upgrade from earlier versions of 10.3 can be downloaded here. The full installation program can also be downloaded from your download page. Please contact us if you do not have the link to your download page.

OrcaFlex 11.0 released

We are very pleased to announce the release of OrcaFlex version 11.0. The software was finalised and built on 28th November. All clients with up-to-date MUS contracts should receive, by e-mail, instructions on how to download the new version.

Version 11.0 introduces much new functionality, including:

  • Diffraction analysis
  • Enhanced wind turbine modelling
  • Wind drag loading for 6D buoys
  • Enhanced wind specification
  • Disturbed sea state results for vessels
  • New results variables
  • Hysteretic constraint stiffness
  • Enhancements for 3D views
  • Software licensing

These are the most significant developments, in our opinion. As always there are more enhancements that are not listed here. All new features are fully documented in the what’s new topic for 11.0.

Continue reading “OrcaFlex 11.0 released”

OrcaFlex turbine controller examples

OrcaFlex 10.3 introduced the turbine object, used to model horizontal axis wind turbines.

A key issue for wind turbine analysis is the modelling of the generator and blade control systems. Because these control systems are typically proprietary, OrcaFlex does not offer any built-in control system functionality. Rather, the user must specify the control systems through external functions.

When we released 10.3d, we updated the documentation to include some example external function controllers. The pertinent help topics are:

These documentation topics contain links to the controller examples which can also be downloaded directly.

Other useful sources of information for turbine modelling:

OrcaFlex 10.3b released

We have just released a minor upgrade to OrcaFlex, version 10.3b. Version 10.3b introduces some minor new functionality and fixes a number of bugs. Full details of the changes are described here.

A patch to upgrade from 10.3a to 10.3b can be downloaded here. The full installation program can also be downloaded from your download page. Please contact us if you do not have the link to your download page.