Orcina news

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 […]

OrcaFlex 10.3d released

We have just released a minor upgrade, version 10.3d, which fixes a number of bugs. Full details of the changes are described here. We recommend that users of 10.3 upgrade to 10.3d. A patch to upgrade from earlier versions of 10.3 can be downloaded here. The full installation program can also be downloaded from your […]

OrcaFlex 10.3 turbine validation

Following the introduction of the turbine model object in version 10.3 we have now produced a report which details the validation performed on the turbine against documented industry studies. The validation study considers the National Renewable Energy Laboratory (NREL) offshore 5-MW baseline wind turbine, which is recognised as an industry-standard reference turbine system. Two separate […]

OrcaFlex 10.3c released

We have just released a minor upgrade, version 10.3c, which fixes a number of bugs. Full details of the changes are described here. We recommend that users of 10.3 upgrade to 10.3c. A patch to upgrade from 10.3a or 10.3b to 10.3c can be downloaded here. The full installation program can also be downloaded from […]

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 […]

OrcaFlex 10.2d released

Coinciding with the release of version 10.3, we have just released a minor upgrade to OrcaFlex 10.2, version 10.2d. This 10.2 update addresses all outstanding known bugs on the 10.2 branch. A patch to upgrade from earlier releases of 10.2 is available. Alternatively, the download page for 10.3 (sent by e-mail to your company software administration […]

OrcaFlex 10.3 released

Once again, it’s that time of year at Orcina where we release a brand new version of OrcaFlex and so we are very pleased to announce the release of version 10.3. The software was finalised and built on 28th November. A particular novelty this year is that we are now distributing the software electronically. Finally […]

Using curvilinear constraints to impose motion

OrcaFlex has two objects whose motion can be imposed rather than calculated: The vessel object through displacement RAOs, harmonic motion, time history or externally calculated motion. The constraint object (added in version 10.1) through motion time histories in the constraint’s imposed displacement mode. In addition to these more well-known methods of imposing motion, the constraint […]

OrcaFlex 10.2b released

We have just released a minor upgrade to OrcaFlex, version 10.2b. This minor upgrade fixes the following bugs: The following features may not have worked correctly for lines that have inactive parts: line profile graphs; fatigue analysis; splined lines in line contact relationships; penetrating lines that are around splined lines in a line contact relationships. The […]

Distributed OrcaFlex 6.0c released

This is a minor update release which fixes a few bugs that have come to light since the 6.0b release. The new release is available here: Distributed OrcaFlex 6.0c The changes include: Bug fix: Sometimes, in the event of an error, the DOF Server would produce a cascade of error report files that caused the […]