A hammam aboard a luxury superyacht. Before the CFD simulation.

A hammam aboard a luxury superyacht.

The environment: high humidity, tight volumes, temperature that must remain uniform at every point in the room. White marble walls. Built-in seating. Every centimeter constrained by the aesthetic design.

The risk without simulation

The standard system configuration would have generated stagnant steam zones in the upper part of the space and localized cold drafts on the seating areas — exactly where the body is wet and the sensation of cold is at its peak.

The image shows the CFD simulation of the initial configuration. The streamlines clearly show the turbulence: the air doesn't distribute evenly, it creates localized vortices and stagnant zones over the occupied areas.

Probability of discomfort without preventive intervention: ninety percent.

The cost of finding out afterwards

On a luxury superyacht, fixing this after launch means working on precious finishes, downtime, costs between fifty thousand and two hundred thousand euros. It also means a difficult conversation with the owner.

Before launch, it was just a system configuration to revise. One line in the project.

Problems get solved on paper. Not on the build. Next week: the method and the results.