SHIPFLOW 6.3 - new release

SHIPFLOW 6.3

We are happy to announce that the latest release of SHIPFLOW is available. Version 6.3 can be downloaded from our home page, www.flowtech.se. Customers in the maintenance program can request a new license file for the new version. We have added many new features that we think you will enjoy using. Here are the major news:

SHIPFLOW Wizard
New version of the VOF RANS solver
New version of MOTIONS
Video tutorials and application examples

Parametric roll simulation

Parametric roll

The video shows the motion of the DTC container ship experience parametric roll. The prediction was produced with the release 6.3 of SHIPFLOW MOTIONS.

In this simulation the wave encounter frequency is approximately twice the natural roll frequency and the wavelength of the encountering wave is approximately equal to the ship length. The ship was given an initial roll of one degree in order to trigger the roll. No viscous damping was added in this case.

Optimization of ship sterns - part 1

Resistance and propeller efficiency

The first published article in a series of articles on shape optimization of ship sterns with CFD has been released. It demonstrates the importance of optimizing for the delivered power rather than the resistance which can be misleading. This requires the computations of the self propulsion with CFD that can be very computational demanding. However, it is shown that with the new fast solver in SHIPFLOW 6 the optimizations can be performed on a modern workstation or in a small cluster.

The article is called Optimization of ship sterns – part 1 and can be found in under the menu Cases.