FULL DATASET AND WIDE RANGE OF TEST FACILITIES
In the Tripping JIP, MARIN will test and compute a large set of propellers. This dataset shall be used fourfold. First, to provide benchmarks for CFD on propellers. Second, to develop new generic scale corrections for propellers to be used in model test. Third, to develop new generic CFD correlations for propellers to be used for numerical powering predictions. And finally, to provide input to develop new full-scale polynomials for the performance of the renown Wageningen C and F series.
Six other research institutes are working together with MARIN to not merely investigate open water characteristics of propellers, but also to study propulsion tests in combination with tripping.
The Tripping JIP will present new propeller scale corrections and propose updated procedures for extrapolating propulsion tests to the ITTC. The project is a significant collaborative effort, bringing together shipowners, research institutes and the industry to create a level playing field.
BENEFITS
The benefits of the Tripping JIP include reducing unexpected outcomes during model tests by improving the tests themselves, updating the extrapolation methodology, and adopting reliable CFD-based propeller scale effects. Besides more reliable full-scale predictions, designers will have better control of the propeller design on both model scale and full scale. This would allow to direct the design focus to full scale, without being severely limited by model scale limitations, ultimately leading to improved propeller designs for full scale. Furthermore, the Tripping JIP will quantify of the effect of surface roughness on propeller performance. Moreover, benchmark data for RANS computations on propellers for reference and quality checks will be provided, such that the quality of and confidence in CFD and computational design methods will improve significantly. Finally, the Tripping JIP will provide full-scale data to the Wageningen C and F series.
INTERESTED TO JOIN?
The Tripping JIP is eager to welcome new participants. The 3-year project started in April 2024 and is still open for participation.
For more information see
www.marin.nl/jips/tripping