Case Study

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June 3, 2026

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6 min read

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By Revellum

−35% turbulence. −50% thermal gradient. +60% air exchange. The result of physics applied early.

After optimization, the same hammam. −35% turbulence. −50% thermal gradient. +60% air exchange effectiveness. The numbers tell you what's measured. Not what you feel walking in.

Simulazione CFD stato ottimizzato DOPO — Hammam superyacht — Campo velocità scalato uniforme, gradiente termico ridotto del 50% — Revellum

After optimization, the same hammam.

−35% turbulence. −50% thermal gradient. +60% air exchange effectiveness.

But the numbers don't tell the whole story. They tell you what's measured. Not what you feel walking in.

Simulazione CFD stato ottimizzato DOPO — Hammam superyacht — Campo velocità scalato uniforme, gradiente termico ridotto del 50% — Revellum
Visualizzazione CFD — Stato Ottimizzato (DOPO) · Scaled Velocity Field · Revellum

The method: iterative simulations

What we did: iterative simulations. Each cycle improved the configuration of the air supply and extraction. Each cycle answered a precise question: where does turbulence form? Where does the steam stagnate? Where does the vertical thermal gradient exceed ISO 7730 parameters?

What we didn't do: wait for sea trials.

Confronto iterativo CFD Mean Age of Fluid PRIMA vs DOPO — Superyacht hammam — Rosso aria stagnante, verde ricambio ottimale — Revellum
Confronto CFD — Mean Age of Fluid · Prima → Dopo ottimizzazione · Revellum

What the data shows

The second chart shows the before/after comparison on the Mean Age of Fluid — the average age of the air. On the left, the initial configuration: the red zones indicate stagnant air, remaining in the space for up to 720 seconds without exchange. On the right, the optimized configuration: uniform distribution, effective exchange at every occupied point.

The velocity field streamlines flow in an orderly way: entering from the upper zone, circulating uniformly, exiting without creating vortices over the seating areas. The thermal map is nearly flat — constant temperature between 35°C and 40°C at every point.

The flat calm of the air. Uniform warmth from skin to walls. The thermal silence you can't explain but feel immediately.

This isn't the result of a better idea. It's the result of physics, applied early.

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