Orcina news

We have just released Distributed OrcaFlex 7.0a which you can download from the Distributed OrcaFlex page.

This is a major update containing the following changes:

• DOF can now handle simulation restarts. Restart parents are identified in the DOF Viewer when submitting a batch of jobs and the DOF Server will ensure that the dependency chain is run in the correct order if the ‘Respect restart sequence’ check box is selected when submitting jobs. When adding restart child models, you can automatically include the restart parents if you check the ‘Include restart parents’ check box. The child restart models must be ‘.yml’ text data files.
• The DOF Viewer can display full details for a selected job in a pop-up window from the context menu. Client machine details can be viewed in a pop-up from the context menu in the DOF Viewer OrcaFlex Clients tab. The DOF Server settings can be seen in a pop-up window by double-clicking the DOF Viewer status bar.
• The speed of handling of the job status and progress messages in the DOF Server has been improved.
• The list of DOF Clients kept by the DOF Server is now saved in structured text format (yaml) file. This can be edited to give a DOF Client an alias name for display in the DOF Viewer rather than its machine name.
• Bug Fix: If a client disconnected during communication with the DOF Server this would cause an error in the server.
• Bug Fix: A client could fail to provide a MAC address to the DOF Server which meant that the ‘Wake on LAN’ feature would not work.
• Bug Fix: If a DOF Client was disabled whilst running jobs, these jobs were given a ‘moving’ status but could block later scheduling to that DOF Client if other client machines were busy.

We have just released a minor upgrade to OrcaFlex, version 11.3b. Version 11.3b introduces some minor new functionality and fixes a number of bugs. Full details of the changes are described in the documentation:

• OrcaFlex
• OrcaWave

We recommend that all users of 11.3 upgrade to 11.3b.

To upgrade to OrcaFlex 11.3b from any previous version, download the install program from your company’s Orcina software download page. A link to this page was sent to your software administration contact when we released 11.3a. If you do not have access to this page, please contact us.

We have now finished our series of OrcaFlex 11.3 user group meetings! These were once again held online, and while this meant we missed being able to see you all in-person, it did provide an opportunity for many people to participate who may otherwise have not been able to get to an in-person event. During the four meetings we had over 400 attendees from 25 countries around the world, from as far afield as Australia, Hungary, Japan, Qatar and Sweden.

If you weren’t able to attend, the recordings are now available to view online, either via our YouTube channel or the videos page of our website. Please do forward links to any of your colleagues who you feel may be interested.

We hope that you found the sessions helpful and informative. Thanks again for your continued support and we wish you a Merry Christmas and a happy and prosperous New Year!

Following the release of OrcaFlex 11.3, we can now announce our OrcaFlex 11.3 user group meetings. Once again, we are running these as virtual webinars.

These webinars will cover all the new features introduced in version 11.3 of OrcaFlex and OrcaWave. We will split the content into two separate webinars, one for OrcaFlex and one for turbines and OrcaWave. Each webinar will be delivered twice in the same day to give users in different time zones the opportunity to attend.

We anticipate that each webinar will be around one hour in duration, and attendees will be able to ask questions. Recordings of the webinars will be available on our website shortly after they have taken place.

We are running the webinars over Zoom. You will need to register for whichever webinars you wish to attend, using the links below. Zoom webinars can be attended using the Zoom client, or directly from the browser if you do not have the Zoom client.

We look forward to catching up with our regular user group attendees, and hopefully some first timers too!

OrcaFlex new features

This webinar will introduce the new features in OrcaFlex 11.3, other than wind turbine features.

Turbines and OrcaWave new features

This webinar will cover the new features in:

• The OrcaFlex wind turbine object
• OrcaWave, our diffraction analysis program

We are very pleased to announce the release of OrcaFlex version 11.3. The software was finalised and built on 17^th November. All clients with up-to-date MUS contracts will receive, in the week starting 21^st November, an e-mail with instructions on how to download and install the new version.

Version 11.3 introduces much new functionality, including:

• Tabular contents modelling and expansion tables
• Turbines: unsteady aerodynamics, improved performance
• OrcaWave: dipoles, mean drift full QTFs, Morison element added mass and fluid inertia
• Restarts: line feeding, mid-simulation restarts, collated results via API
• Truss structure modelling
• DNV ST F101 2021 code check update
• Morison element added mass and fluid inertia
• Embedded Python optionally included in OrcaFlex installation

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 topics:

• OrcaFlex
• OrcaWave

Continue reading “OrcaFlex 11.3 released”

We have just released a minor upgrade to OrcaFlex, version 11.2e. Version 11.2e fixes a number of bugs. Full details of the changes are described in the documentation.

We recommend that all users of 11.2 upgrade to 11.2e.

To upgrade to OrcaFlex 11.2e from any previous version, download the install program from your company’s Orcina software download page. A link to this page was sent to your software administration contact when we released 11.2a. If you do not have access to this page, please contact us.

We have just released a minor upgrade to OrcaFlex, version 11.2d. Version 11.2d fixes a number of bugs. Full details of the changes are described in the documentation. Note that there are no changes to OrcaWave in this release.

We recommend that all users of 11.2 upgrade to 11.2d.

To upgrade to OrcaFlex 11.2d from any previous version, download the install program from your company’s Orcina software download page. A link to this page was sent to your software administration contact when we released 11.2a. If you do not have access to this page, please contact us.

Microsoft stopped offering 32 bit versions of Windows 10 to computer manufacturers in early 2020, and Windows 11 is only available for 64 bit systems. OrcaFlex and OrcaWave require 64 bit processes for efficient performance and from our own experience we cannot remember the last time we came across a user running on a 32 bit version of the operating system.

Accordingly, version 11.3, scheduled for release towards the end of 2022, will be the final version of OrcaFlex which can be installed on a 32 bit version of Windows. Future releases of OrcaFlex, after 11.3, will require 64 bit versions of Windows.

Note that we will continue supplying both 32 and 64 bit versions of the program executable files, but we strongly recommend that you use the 64 bit versions. We are making this change because it is becoming ever harder to test our installation package on 32 bit systems. Limiting support to 64 bit systems will also simplify the development of the installation package.

Windows 8.1 reached the end of mainstream support on January 9, 2018, and will reach end of extended support on January 10, 2023.

OrcaFlex 11.3 will be released towards the end of 2022 and this will be the last release of OrcaFlex that supports Windows 8.1. Future releases of OrcaFlex, after 11.3, will support Windows 10 and later.

We have just released Distributed OrcaFlex 6.2a which you can download from the Distributed OrcaFlex web page.

This is a relatively minor update containing the following changes:

• Previously, when submitting jobs, you specified whether you wanted both statics and dynamics to be performed, or just statics. Starting in OrcaFlex 11.1 the input data specifies whether statics and/or dynamics are to be performed. Because this setting has been moved into the model data, it is no longer possible to make this choice when submitting jobs in Distributed OrcaFlex. However, it is sometimes useful to be able to skip dynamics even if it is enabled in the input data. A new skip dynamics option has been added to the submit job dialog which mirrors the identically named option on the OrcaFlex batch processing form.
• The console program (dofcmd.exe) can now list jobs in both yaml and csv format. Previously only csv format was available.
• Jobs with post calculation actions would sometimes be restarted by the server if the post calculation action spent too long processing without sending a progress update. This release fixes that issue, but also requires that the Python OrcFxAPI module is updated.

Note that if you wish to take advantage of the improved handling of long-running post calculation actions, then you will need to update your Python OrcFxAPI module. This would happen normally by an OrcaFlex update, and the next minor release (11.2d) will include the required changes. In the meantime if you need to update then you can do so from the PyPI repository using this command:

pip install –ignore-installed –no-deps OrcFxAPI