Another hull roughness assessment of our twin-screw vessel

What hull roughness value do you use when you run a CFD simulation of a vessel in ship scale?

At the JoRes project, we use the actual measured values for our vessels! A year ago JoRes team visited a dry-dock to measure hull roughness in 145 locations for our twin-screw vessel. This year we repeated the measurements at the same locations, so we will have a great opportunity to see how roughness changed over time! 

JoRes team at the dry-dock