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Striving to increase confidence in numerical methods and create a basis to further ship performance improvement and industry digitalisation.
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Latest News
Research to understand hull roughness
The JoRes team have been working on this ferry paint degradation project for a number of years....
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Chalmers University Workshop on 25 Sep
The Chalmers University of Technology, Department of Mechanics and Maritime Sciences, is organising ...
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Open Workshop on Ship Scale Resistance
As you probably know, the JoRes Joint Industry project was successfully completed on the 1st of Dece...
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Mission
The Joint Research Project mission is to collect and develop, through collaboration, a full set of ship performance data, to better understand the potential for ship energy efficiency.
Collect
Model tests results, Computational Fluid Dynamic (CFD) calculations, sea trials measurements and long-term monitoring data.
Develop
Recommendations and best practices on ship scale CFD.
Improve
Confidence in CFD to make more accurate energy-efficiency predictions.
Ship scale validation cases
| MV Regal | JoRes1 Tanker | JoRes2 RoRo ferry | JoRes3 Cruise liner | JoRes4 Deniz tug | JoRes5 bulk carrier | Lucy Ashton | ||
|---|---|---|---|---|---|---|---|---|
| Geometry files formats | .igs .stp .stl | .igs .stp .stl | .3dm .igs .stp .stl .dbs | .igs .stp .stl | .igs .stp .stl | .igs .stp .stl | .igs .stp .x_t | |
| Dimensions | Length between perpendiculars, m | 138.0 | 178.5 | 170.0 | 226 | 18.28 | 182.0 | 58.1 |
| Breadth moulded, m | 23.0 | 32.26 | 27.7 | 32.2 | 7.46 | 32.26 | 6.4 | |
| Model tests | Model tests at the trials draughts | SINTEF and CSSRC | SSPA and HSVA | N | N | N | N | 6 models |
| Geometry details | Energy Saving Device (ESD) | N | PBCF, skeg, rudder plate | Twisted rudders | Twisted rudders | Ducts | Pre Swirl Stators | N |
| Propeller | 1FPP, 4 blades | 1FPP, 4 blade | 2CPP, 4 blades | 2FPP, 5 blades | 2FPP, 4 blades | 1FPP, 4 blades | No :) | |
| Average Weld seams width, mm | N | 24.5 | 22.2 | N | N | N | N | |
| Information about Anodic protection | Y | Y | Y | Y | Y | N | Y | |
| Information about Bulge keels | Y | Y | Y | Y | Y | N | Y | |
| Roughness | Equivalent sand grain hull roughness, µm | 440 | 53 | 17 | 15 | 66 | 53 | 59 - 97 |
| Equivalent sand grain rudder roughness, µm | 440 | 63 | 22 | 230 | 132 | 63 | N | |
| Equivalent sand grain propeller roughness, µm | 6 | 4 | 3 | Y | Y | 4 | n/a | |
| Trials condition | Deep water trials | Y | Y | Y | Y | Y | Y | Y |
| Shallow water trials | N | N | N | Y | N | N | N | |
| Speed and Power trials | Sea trials speeds, kn | 9.03 10.96 11.76 12.82 | 8.96 11.25 13.34 14.14 | 16.66 | ~12 | ~6 ~7.5 ~8.5 ~10 | 13.65 15.25 16.02 16.32 | 5-15 |
| Draughts | Ballast | Loaded | Ballast | Ballast | n/a | Ballast | n/a | |
| Propeller torque measurements | Y | Y | Y | Y | Y | Y | n/a | |
| Propeller thrust measurements | Y | N | Y | Y | N | N | n/a | |
| PIV flow measurements | N | Y | N | N | N | N | N | |
| Cavitation observations | Y | N | N | N | N | Y | n/a | |
| Pressure pulses measurements | Y | N | N | N | N | N | n/a | |
| Drone videos of wave pattern | Y | N | N | N | Y | N | N | |
| Bridge videos of wave pattern | Y | N | N | N | N | N | N | |
| Trials with and without ESD | N | N | N | N | N | Y | Y | |
| Manoeuvring trials | Zig-zag 10 deg tests | N | N | N | Y | Y | N | N |
| Zig-sag 20 deg tests | N | N | N | Y | Y | N | N | |
| Turning circle | N | N | N | N | Y | N | N | |
| Inertia Stop | N | N | N | N | Y | N | Y | |
| Acceleration | N | N | N | N | Y | N | Y | |
| Crash Stop | N | N | N | N | Y | N | N | |
| Bollard pull | N | N | N | N | Y | N | N | |
| Long term monitoring data | Y | N | Y | Y | N | N | N |