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♨️ Bath Hot Springs Simulator: Geothermal Flow Beneath Aquae Sulis

Trace rainwater as it sinks through limestone, heats geothermally at depth and rises through a fault to resurface at Bath's hot springs. Adjust infiltration depth, geothermal gradient and flow rate, and switch between the Roman and Georgian city above.

Geology & Earth Science3DEasy60 FPS💧 Water 🌍 Earth

Details

CategoryGeology & Earth Science

RenderingThree.js · WebGL

DifficultyEasy

Target FPS60

ControlsInfiltration depth slider (2.5-4.5 km) sets how deep the fault circulation reaches, changing the flow path and the temperature at depth; Geothermal gradient slider (18-32 C/km) sets how fast temperature rises with depth; Spring flow rate slider (300-2000 kL/day, centred on Bath's real ~1.17 million L/day) controls flow speed and how much heat the rising water retains; Roman Aquae Sulis / Georgian Bath toggle swaps the surface architecture above the spring between the Roman temple-and-Great-Bath complex and the Georgian crescent townhouses, while the underground flow keeps running unchanged.

Three.jsGeologyHot SpringsGeothermalUK TravelInstancedMesh

📖 Read the articleThe maths behind Bath Hot Springs Simulator: Geothermal Flow Beneath Aquae Sulis

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⚙ Under the hood

Trace rainwater as it sinks through limestone, heats geothermally at depth and rises through a fault line to resurface at Bath's hot springs. Adjust infiltration depth, geothermal gradient and flow rate, and switch between the Roman and Georgian city built above the spring.

Three.jsGeologyHot SpringsGeothermalUK TravelInstancedMesh

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install