Joint Research Project

Development of an industry recognised benchmark for Ship Energy Efficiency Solutions

The project was completed in 2023 and all the results and geometries will be publicly available from 1 December 2024. Stay tuned!

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

Chalmers University Workshop on 25 Sep

The Chalmers University of Technology, Department of Mechanics and Maritime Sciences, is organising ...

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CFD

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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CFD

JoRes project at the World Laureates f

Dr Dmitriy Ponkratov has recently presented the JoRes project at the World Laureates Forum in Shangh...

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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

Testimonials