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Dynamics & vibration

The liquid that doesn't obey

Seismic sloshing in a vertical vessel

Duration
2:18
Year
2026

The case

In an earthquake the steel of a vessel follows the ground almost without delay. The liquid inside does not quite. Generic case: a Ø 5 m vertical vessel on a skirt, 6 m of water, a 0.30 g synthetic record. 83 % of the liquid moves with the wall; 17 % sloshes with a 2.34 s period, and the wave at the wall reaches 1.27 m.

Topics

  • Seismic
  • Sloshing
  • Vessels

Basis. Generic synthetic case built for this piece. No client data. Not a design verification.

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